Jaroslav Klokočník PUBLIKACE 1973 - 2013
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1 Klokocnik J. 1973
Nabljud. ISZ 13, 338
Cislovyje sravnenija paralakticeskoj refrakcii rascitanoj po raznym formulam
2 Klokocnik J. 1974
Nabljud. ISZ 14, 61
Geodetic use of the 15th-order resonance in the motion of artificial satellites
3 Klokocnik J., Lala P., Navara P., Prokes M., Sehnal L., Solaric M. 1974
Nabjud. ISZ 14, 539. The usage of Intercosmos (AUOS-Z) satellite for astrodynamics
4 Klokocnik J. 1975
Bull. Astronom. Insts. Cs 26, 294 Resonant coefficients of the Earth gravity field derived
from inclination of Intercosmos satellites
5 King-Hele D.G., Sehnal L., Lala P., Klokocnik J. 1975
UNO Document No. A/AC.105/64,49
COSPAR study on altitudes of artificial Earth satellites
6 Klokocnik J. 1976
Bull. Astronom. Insts. Cs 27, 287
Changes in inclination of a close Earth satellites due to orbital resonances
7 Klokocnik J. 1977
Bull. Astronom. Insts. Cs 28, 291
14th and 28th-order lumped coefficients from changes of
the orbital inclination of Intercosmos 9 and 10
8 Klokocnik J., Kostelecky J. 1978
Bull. Astronom. Insts. Cs 29, 10
Evaluation of the 14th-order harmonics from resonant inclination variations
9 Klokocnik J. 1978
Bull. Astronom. Insts. Cs 29, 257
Beta/2 orbital resonances of Earth satellites for geopotential applications
10 Klokocnik J. 1978
in Proceed. "The Use of Artif. Satel. for Geodesy and
Geodynamics", ed. G.Veis, National Technical Univ., Athens,
Vol II, 241. Some characteristics of the Earth gravitational field from
orbital resonances of the Intercosmos satellites
11 Kostelecky J., Klokocnik J. 1979 Bull. Astronom. Insts. Cs 30, 45
30th-order harmonics from resonant inclination variations of 10 satellites
12 Klokocnik J., Kostelecky J. 1979
Edice Mongr. VUGTK No.8, Praha
14th and 30th-order harmonics from resonant inclination variations
13 Zahradnik J., Klokocnik J. 1977
Bull. Astronom. Insts. Cs 28, 371
Site evaluation for OndÍejov laser satellite-tracking station
14 Montag H., Lala P., Klokocnik J. 1978
presented at Intercosmos conf. Olsztyn, Poland,
publ. in Edice VUGTK 5 (1979), No 3, Praha
Some requirements for complex geodynamical stations
15 Kostelecky J., Klokocnik J. 1980
Edice VUGTK 5, No. 2, Praha
Earth gravitational field effect on a near-geostationary satellite orbit
16 Sehnal L., Klokocnik J. 1979
Bull. Astronom. Insts. Cs 30, 205
Analysis of inclination variations of Intercosmos 10
17 Klokocnik J. 1979
Bull. Astronom. Insts. Cs 30, 214, 15th-order resonance of Intercosmos 11
18 Klokocnik J., Kostelecky J. 1979
Bull. Astronom. Insts. Cs 31, 123
On the possibility of determining variations of the geo-
center position using geostationary satellite observations
19 Klokocnik J, Kostelecky J. 1980
in Proceed."Reference coordinate systems for Earth dynamics",
eds. E.M. Gaposchkin and B. Kolaczek,
Reidel Publ. Co. (1981), 251
Critical remarks on the possibility of determination of
the geocenter position using geostationary satellite observations
20 Wakker K.F., Klokocnik J., Kostelecky J., Sehnal L. 1980
Bull. Astronom. Insts. Cs 32, 168, Abstract also in: Nabjud. ISZ 20, 275
Analysis ofinclination variations of the first Netherland‘s satellite
21 Klokocnik J., Pospisilova L. 1981
Planet. Space Sci. 29, 653, abstract also in: Nabljud. ISZ 20 (1980), 186
Intercomparisons of Earth models by means of lumped coefficients
22 Klokocnik J., Kostelecky J. 1981
Edice VUGTK 5, No.6, Praha, Possible contribution to the Earth model "GRIM 3"
23 Pospisilova L., Klokocnik J., Kostelecky J. 1982
Bull. Astronom. Insts. Cs 33, 33
A comparison of Earth models by degree of their harmonic coefficients
24 Klokocnik J. 1982
Bull. Astronom. Insts. Cs 33, 89
A review of methods of comparisons of "resonant" lumped geopotential coefficients
25 Klokocnik J. 1982
Bull. Astronom. Insts. Cs 33, 259
A readjustment of lumped coefficients from inclination of 1974-70A
26 Sima Z., Klokocnik J., Hadrava P. 1983
Bull. Astronom. Insts. Cs 34, 302
A comparison of Earth models by their higher frequency parts
27 Kostelecky J., Klokocnik J. 1983
presented at KAPG conf. Prague 1982, publ. in Planet. Space Sci. 31, 829
Collocation and 30th-order resonant harmonics
28 Klokocnik J. 1983
Proceed. "Problemy soucasne gravimetrie", ed. GFU Praha, 58
Accuracy assessment of the Earth Gravity Models (in Czech)
29 Klokocnik J. 1983
Celest. Mech. 30, 407
Orbital rates of Earth satellites at resonances to test the accuracy
of Earth gravity field models
30 Kostelecky J., Klokocnik J. 1983
present. at KAPG conf. Prague 1982,
publ.in Proceed. "Interntl. Symp. Figure of the Earth,
the Moon and other planets", Monograph. Ser.
VUGTK Praha, 415, Results of study of Earth gravitational
field by means of resonant phenomena
31 Klokocnik J., Pospisilova L. 1984
Planet. Space Sci. 32, 151
Intercomparisons of Earth gravity models by means of
lumped coefficients: terms for excentricity and longitude,
32 Klokocnik J., Kostelecky J. 1984
presented at COSPAR/INTERCOSMOS conf. Karlovy Vary,
publ. in Nabljud. ISZ 23, 441, On orbit determination with lumped coefficients
33 Klokocnik J. 1985
Bull. Astronom. Insts. Cs 36, 27
Further comparisons of Earth models by means of lumped coefficients
34 Klokocnik J. 1984
presented at Intercosmos conf. of 6th sect. on GEO-IK satellite project, Warsaw, Poland,
presented at COSPAR/INTERCOSMOS conf. Karlovy Vary
publ. in Nabljud. ISZ 23, 309
Proposal for a laser geodynamic twin-satellite (Intercosmos study)
35 Klokocnik J. 1985, Manuscr. Geod. 10, 179
A proposal for a laser geodynamic twin-satellite
36 Klokocnik J. 1986
Bull. Astronom. Insts. Cs 37, 26
Further comparisons of Earth models by means of lumped coefficients (Part II)
37 Klokocnik J. 1985
presented at conf. "Space 1985", Varna, Bulgaria
Orbital analysis of Intercosmos satellites and the Earth gravity field modelling
38 Klokocnik J. 1986
Bull. Astronom. Insts. Cs 37, 91
An analysis of variance-covariance matrix of harmonic geopotential coefficients
of GEM-L2
39 Kostelecky J., Klokocnik J. 1986
Bull. Astronom. Insts. Cs 37, 84
Earth gravitational perturbation sensitivity and orbital inaccuracy for GEO-IK orbit
40 Sima Z., Klokocnik J. 1986
Bull. Astronom. Insts. Cs 37, 229.
Abstract also in: Nabljud. ISZ 23, 311
"Frequency windows" from Earth models and resonant solutions –
further test of the accuracy
41 Lala P., Klokocnik J. 1986
Bull. Astronom. Insts. Cs 37, 239, Relative motion of the geodynamical twin-satellite
42 Klokocnik J. 1986
"Hvezdarska rocenka na rok 1987" (in Czech), Academia Praha
Modely gravitacniho pole Zeme
43 Klokocnik J. 1986
presented at COSPAR Techn. Panel on Satell. Orbits,
Toulouse, France, Advances of Space Res. 6, 167
Orbit inaccuracy for altimetric and geodynamic satellites
due to errors in the harmonic coefficients of recent Earth gravity field models
44 Kostelecky J., Klokocnik J., Kalina Z. 1986
Manuscr. Geod. 11, 293, Computation of normalized inclination function to high
degree for satellites in resonances
45 Klokocnik J. 1986
presented at ITA, Acad. Sci. USSR, Leningrad
Tochnost modelej gravitacionnogo polja Zemlji (in Russian)
46 Klokocnik J., Kostelecky J. 1987
Bull. Astronom. Insts. Cs 38, 334
also presented at Intercosmos conf. of 6th section, Szentendre, Hungary,
Earth gravity field and high satellite orbits
47 Klokocnik J. 1988
presented at Intercosmos conf. of 6th section, Szentendre
(1987), Hungary, publ. in
Bull. Astronom. Insts. Cs 38, 45
Geopotential Research Mission: a contribution to assessment
of orbit accuracy, orbit determination and gravity field modelling
48 Klokocnik J. 1987
Proceed. 10th ERAM, IAU, Praha, ed M. Sidlichovsky, 145
Orbital analysis of Intercosmos satellites and the Earth gravity field modelling
49 Baghos B.B., Tawadrous M.Y., Helali Y.E., Bachtigaraev N.S.,
Mironov N.T., Klokocnik J. 1987
present. at Intercosmos conf. "Use of Artif satell. Obs. for
Geodesy and Geodynamics", Szentendre, Hungary
Expected changes of baseline lenghts between Euroasian
and African Intercosmos stations due to the plate motions
50 Klokocnik J., Kostelecky J. 1988
Lectures present. at "Seminarium z Mechaniki Nieba", Poznan,
Poland (summer school on celestial mechanics, 1987), publ.
in Edice VUGTK 5, No. 14, 128 pages, Satellite dynamics
and gravity field modelling: methods, status and trends
51 Klokocnik J., Pospisilova L., Helali Y.E., Tawadrous M.Y. 1988
Manuscr. Geod. 13, 359
Power and error power spectra of current Earth gravitational models
52 Klokocnik J. 1987
techn. rep. DGFI Abt 1, Munich. Notes to pre-ERS-1 gravity field modelling
53 Klokocnik J., Reigber Ch., Mueller H., Kostelecky J. 1989
DGK, Bayer. Akad. Wiss., Reihe B, 289, Munich
Covariance propagation from GEM L2 and GRIM 3M1P to TOPEX and ERS-1 orbits
54 Reigber Ch., Klokocnik J., Li H., Flechtner F. 1988
DGFI and DFVLR WT-DA rep.,
presented at ESA/EOPAG conf., Paris; Contribution to ERS-1: Orbit Dossier
55 Kostelecky J., Reigber Ch., Klokocnik J., Raimondo J.C. 1989
Bull. Astronom. Insts. Cs 40, 321
Error assessment of the first order perturbation theory for deep resonant cases
56 Klokocnik J., Kostelecky J., Li H. 1990
presented at Intercosmos conf. Cracow, Poland (1990)
publ. in Bull. Astronom. Insts. Cs 41, 17
Best lumped coefficients from resonances for direct use in Earth gravity field modelling
57 Klokocnik J., Dietrich R. 1990
Bull. Astronom. Insts. Cs 41, 123
Test of POEM-L1 gravity field model by lumped coefficients
58 Novotny V., Recek J., Sehnal L., Klokocnik J., Novak P., Pospisi-
lova L., Neumann Z., Kostelecky J., Hovorka F., Sidak P., Gryc Z.,
Ruzicka J., Grygar Z., Nemrava M., Antusek M., Tuma J.,
Vodicka V.,
Cipak I., Tatevyan S.K., Shematovich V.I., Podgornyi I.M.,
Ivanov-Kholodnyi G.S. 1989 Preprint Astronom. Inst. Czechosl. Acad. Sci., Ondrejov,
No. 99, 265 pages plus techn. documentation
Subsputnik S2-SAS (MACEK) s mikroakcelerometrom, eskiznyi projekt
59 Klokocnik J., Li H., Mueller H. 1990
ERS-1 D-PAF Doc. roe-31600, techn. rep. DGFI Abt.1, Munich
German PAF for ERS-1:
Investigation of radial orbit error for ERS-1 by means of Rosborough formulae
60 Klokocnik J., Kostelecky J. 1991
Edice VUGTK 5, No 15, Praha
Earth gravity field modeling, satellite altimetry,
space geodynamics - 1989 update, review paper (271 pages)
61 Klokocnik J. 1991
Bull Astron Insts Cs, 42, 389, A note on generalized lumped coefficients
62 Klokocnik J., Kostelecky J. 1990
presented at 3rd COGEOS Workshop (COSPAR & IUGG), June, Brusseles
publ. in COGEOS: a collection of papers, by A.M.Nobili, Zaragoza 1993
Lowest degree and order harmonic geopotential coefficients and their possible
time variations from analysis of geostationary orbits in frame of COGEOS
63 Klokocnik J., Kobrle F. 1991
presented at XX GA IUGG, Symp. U5, August, Vinna,
Three types of crossovers, their errors and sensitivity to the Earth s gravity field
64 Grassl H., Schluessel P., Klokocnik J., Kostelecky J. 1991
presented at Max-Planck-Inst. for Meteorology, Hamburg,
June, techn. rep. No. 75, Max-Planck-Inst. for Meteorology:
On the navigation for polar orbiting meteorological satellites
65 Klokocnik J., Kobrle F. 1992
COSPAR/IAF "The World Space Congress", Washington, D.C.,
presented at symposium B.9 M "Contributions of
Altimetric Satell. to Solid Earth and Ocean Sci." COSPAR 1992,
publ.: Adv. Space Res. Vol. 13, 11 335- 11 343 (1993),
Dual-satellite Crossover Altimetry for ERS-1/TOPEX
66 Klokocnik J., Kostelecky J., Grassl H., Schluessel P.,
Pospisilova L., Gooding, R.H., Lala P. 1992
COSPAR/IAF "The World Space Congress", Washington, D.C.
43rd Congress of IAF, Symp. on Navigation,
publ. 1994: IAA Acta Astronaut. J., 32, #5, 363-376,
Satellite navigation for meteorological purposes:
Inverse referencing for NOAA-N and ERS-1 imagers with a 1 km nadir pixel size
67 Kostelecky J., Klokocnik J. 1992
COSPAR/IAF "The World Space Congress", Washington, D.C.,
presented at panel P1. "Dynamics of satellites an probes",
COSPAR 1992, Investigation of the Instability of Graveyard Orbits due
to the Earth's Gravitational Perturbations; Studia Geoph. et Geod. 36, 297.
68 Straka J., Grassl H., Klokocnik J. 1993
Int. J. Remote Sensing, Vol. 14, 1981-2003,
Navigation of satellite measurements without ground control points
69 Klokocnik J. 1992
lecture at GKSS Geesthacht, Hamburg,
Satellitennavigation fuer die Meteorologischen Satelliten
70 Klokocnik J., Kobrle F., Wagner C.A. 1992
presented 7th Intnl Symp. "Geodesy and Physics of the
Earth", IAG-Symp. 112, GeoForschungsZentrum Potsdam, October
A Test of GEM T2 from GEOSAT Crossovers using Latitude
Lumped Coefficients; extended abstract publ. in: Proc. "Geodesy and Physics of the
Earth", Geodetic Contrib. to Geodynamics, IAG-Symp. 112,
eds. H. Montag, Ch. Reigber, Springer-Verlag, Berlin 1993, pp. 79-82.
71 Wagner C.A., Klokocnik J., 1992
presented at the Fall Meeting of AGU, San Francisco,
publ.: EOS 73, #43, p.128
Geopotential Crossover Errors for Recent Models from
GEOSAT and ERS-1 Altimetry
72 Klokocnik J., Wagner C.A., 1994
Bull. Geod., 68, 100.
A Test of GEM T2 from GEOSAT Crossovers using Latitude Lumped Coefficients
73 Klokocnik J., Kostelecky J., Jandova M, 1993
presented IAG Gen. Meet. Beijing, China, Session D-10:
Impact of Satellite Altimetry on Gravity Field Determination,
publ.: @ Altimetry with dual-satellite crossovers,
Bull. Geod., 20, 82-95 (1995).
74 Wagner C.A., Klokocnik J., 1994
J. Geophys. Res., Vol. 99, B5, 9179-9201,
Accuracy of the GEM-T2 geopotential from Geosat and ERS 1 crossover altimetry
75 Wagner C.A., Klokocnik J.a Tai C.K. 1994
Panel on Satell. Dyn., COSPAR, Hamburg,
Adv. Space Res., 18, (12)131-(12)141, (1995),
Evaluation of JGM 2 geopotential errors from GEOSAT,
TOPEX/POSEIDON and ERS-1 crossover altimetry
76 Klokocnik J. 1994,
Orbital Mechanics Seminar (29.11.),
The Univ. of Texas at Austin, CSR, WRW 113,
Application of Satellite Crossover Altimetry and Accuracy Assessment of
Gravity Field Models.
77 Klokocnik J., Wagner C.A., Kostelecky J., Jandova M. 1994
Panel on Satell. Dyn., COSPAR, Hamburg,
The filtering effect of orbit correction on geopotential errors,
J. Geod. 70, 146-157 (1995)
78 Klokocnik J., Wagner C.A., Kostelecky J. 1995
presented at XX Gen. Assembly EGS, Hamburg, Symp. G1:
High Precision and High Resolution Monitoring of the Earth's Gravity Field from Space I,
Accuracy Assessments of Recent Earth Gravity Models, using Crossover Altimetry,
Studia Geoph. et Geod. 40, 77-110 (1996).
79 Klokocnik J., 1995, Seminar of DGFI, Dept. 1, Munich,
(2.6.); Dual-Satellite Crossover Altimetry.
80 Wagner C.A., Klokocnik J. 1995,
presented at IUGG GA Boulder,
The Role of Geodetic Errors in Connecting Ocean
Surfaces over Disparate Satellite Altimeter Missions.
81 Wagner C.A., Klokocnik J., Cheney R. 1997 J. Geod. 71, 273-281,
Making the Connection between Geosat and TOPEX/Poseidon.
82 Klokocnik J. 1995,
IAU Symp. 172, Dynamics, Ephemerides and Astrometry in
the Solar System, Paris, Bureau des longitudes, July 3-8; A Role of Resonances
for the Earth's Gravity Field Determination: Past, Present, and Future.
83 Bosch W., Wagner C. A., Klokocnik J., Kostelecky J., 1996
presented at XXI Gen. Assembly EGS, Den Haag:
Gravity Field Parameters form Single and Dual-Satellite Crossovers.
84 Klokocnik J., Wagner C.A., Kostelecky J. 1996
presented at XXI Gen. Assembly EGS, Den Haag,
Dual-Satellite Crossover Latitude Lumped Coefficients,
their Use in Geodesy and Oceanography, J. Geod. 71, 603-616 (1997):
85 Kostelecky J., Klokocnik J., 1996:
presented at XXI COSPAR Scientific Assembly, Birmingham,
14 - 21 July; Adv. Space Res. 19, (11)1729-(11)1734, (1997):
A Possible Impact of the Earth's Free Oscillations on Satellite Orbits.
86 Klokocnik J. 1996:
presented at IAU Colloqium 165, Dynamics and Astrometry
of Natural and Artificial Celestial Bodies, Poznan,
July 1 - 5: Dual-Satellite Crossover Altimetry for Geoscience.
87 Klokocnik J. 1996:
presented at IAG GraGeoMar Conference, Tokyo September:
Dual-Satellite Crossover Altimetry for Geodesy and Oceanography, review paper.
88 Klokocnik J., Lemoine F.G., Kostelecky J. 1997:
presented at EGS XXII GA, Vienna,
Projection of EGM 96 Covariance Matrix to Crossover and
Latitude Lumped Coefficient Error;
Marine Geod., 21, 219-239, (1998), with title:
@ Reduction of Crossover Errors in the Earth Gravity Model 96.
89 Klokocnik J., Wagner C.A., Kostelecky J., Bosch W. 1997:
presented at IAMAS-IAPSO conf. "Earth - Ocean - Atmosphere,
Forces for Change", 1-9 July, Melbourne,
Dual-Satellite Altimetry Crossovers: Achievements and Prospects.
90 Klokocnik J. 1997:
presented at Sci. Assembly IAG/ XVIII Brasil. Congress
of Cartogr., 3-9 Sept., Rio de Janeiro, Brasil.
Typology of Satellite Altimetric Crossovers.
91 Klokocnik J., Wagner C.A., Kostelecky J., 1999:
J. Geod., 73, 138-146, Spectral Accuracy of JGM 3 from Satellite Crossover Altimetry.
92 Klokocnik J., Wagner C.A., Kostelecky J., Rentsch M. 1998:
presented at EGS GA, April, Nice, France;
symposium: "Ocean Modelling from Altimetry and Remote Sensing",
Residual Errors in Dual-Satellite Crossover Altimetry Data: An Independent Check.
93 Kostelecky J., Klokocnik J. 1998:
presented at IAG Subcomm. for Europe (EUREF), Bad Neuenahr-
Ahrweiler, Germany, June 10-13.
Proceedings: Report on Symp. IAG Subcomm for Europe (EUREF),
eds. E. Gubler et al., 1999, Frankfurt a/M, pp. 230-232,
Detection of Coordinate Frame Offset from Satellite Altimetry.
94 Klokocnik J., Kostelecky J., Wagner C.A. 1998:
presented at IAG Sect. II Symp. "Towards an Integrated Global
Geodetic Observing System", Munich, 5-9 Oct., 1998,
a modifed version also pres. at EGS GA, April, Hague,
Netherlands (1999), symposium: "Satellite Altimetry:
Unsolved Problems and New Applications,
Residual Errors in Altimetry Data Detected by Combinations
of Single- and Dual-Satellite Crossovers
95 Klokocnik J., Wagner C.A. 1999:
Celest. Mech. and Dynam. Astr., 74: 231-242,
Combinations of Satellite Crossovers to Study Orbit and Residual Errors in Altimetry
96 Klokocnik J., 1999: Geopotential and Non-Gravitational Signal
in Altimetry Data b Combinations of Single- and Dual-Satellite
Crossovers, NASA GSFC (East campus) Bldg. 33, lecture, Nov. 30.
97 Klokocnik J., Wagner C.A., Kostelecky J., Jandova M., 1999:
Isolation of Non-gravitational Signal by Combinations of
Dual-Satellite Crossovers, AGU Fall meeting, Dec. 13-17, San Francisko.
98 Klokocnik J., Wagner C.A., Kostelecky J. 2000:
J. Geod., 73: 671-683,
Residual Errors in Altimetry Data Detected by Combinations
of Single- and Dual-Satellite Crossovers.
99 Wagner C.A., Klokocnik J., Kostelecky J, 2000:
Improvement of Geopotential and Detection of Interannual
Oceanographic Signals from Inversion of Single and Dual
Satellite Altimetry, pres. EGS Nice, April 2000, NOAA
web pages, publ.: VUGTK series Vol. 46, No. 26, 39 pages.
100 Klokocnik J., Reigber CH., Schwintzer P., Wagner C.A.,
Kostelecky J. 2000: GFZ Scientic Techn. Rep. STR 00/22, Potsdam,
pres. at GA EGS Nice 2001, symp. G8.04, J. Geod. 76: 189-198, 2002,
Evaluation of pre-CHAMP Gravity Models GRIM5-S1 and
GRIM5-C1 with Satellite Crossover Altimetry.
101 Kostelecky J., Klokocnik J., Wagner C.A. 2001:
pres. at IAG Sci. Assembly, Budapest, Hungary, Sept.,
a modified version pres. at "2001: an Ocean Odyssey",
IAPSO-IABO Joint Ass. in coop. with IAG, Mar del Plata, Brazil, October,
Use of Satellite Crossover Altimetry for Geodetic and Oceanographic Studies.
102 Wagner C.A., Klokocnik J., Kostelecky J. 2001:
pres. at "2001: an Ocean Odyssey", Sect GI01-05,
IAPSO-IABO Joint Ass. in coop. with IAG, Mar del Plata,
October, also pres. in a modif. form by C.A. Wagner at AGU
Fall meeting, San Francisco, USA, Dec.,
Reflection Altimetry for Oceanography and Geodesy. GA EGS Nice 2002.
103 Wagner C.A., Klokocnik J., Kostelecky J.:
pres. at 1st CHAMP workshop, Potsdam, Germany, Jan. 2002,
GPS Reflecting Altimetry with CHAMP: A simulation study.
104 Gooding R.H., Wagner C.A., Klokocnik J., Kostelecky J.,
Koenig R, Reigber CH., Schwintzer P. 2002: pres. at 1st CHAMP workshop, Potsdam,
Germany, Jan., and at GA EGS Nice, France, April,
CHAMP, Orbit Resonances and Gravity Field Parameters,
105 Wagner C.A., Kostelecky J., Klokocnik J. 2002:
Detection of Interannual Oceanographic Signals and
Adv. Space Res. 30, No. 2, 241-248.
Improvement of Geopotential from Inversion of Single and Dual Satellite altimetry.
106 Klokocnik J., Wagner C.A., Kostelecky J. (Foerste Ch.)
PPT pres. at 3rd Meeting IAG and Geoid Comm. Thessaloniki,
Greece, Aug. 2002, and (without Foerste)
PPT pres. at Interntl. Workshop on Satellite Altimetry for
Geodesy, Geophysics and Oceanography, Wuhan, China, Sept. 2002,
Accuracy Assessment of Earth Gravity Field Models
by means of Independent Satellite Crossover Altimetry.
107 Klokocnik J., Wagner C.A., Kostelecky J.:
Workshop IAG on Satellite Altimetry for Geodesy, Geophysics, and
Oceanography, Wuhan, China, September 2002,
Accuracy Assessment of the Earth Gravity Field Models by means of
Independent Satellite Crossover Altimetry.
108 Bosch W., Klokocnik J., Wagner C.A., Kostelecky J.: 2000,
Proceedings IAG Sect. II Symp. "Towards an Integrated Global
Geodetic Observing System (IGGOS)", pp 96-99, Munich,
October 1998, Springer, Geosat and ERS-1 Datum Offsets relative to Topex/Poseidon
Estimated Simultaneously with Geopotential Corrections from
Multi-Satellite Crossover Altimetry.
109 Kostelecky J., Klokocnik J.: Zbornik referatov z obd. Konf. s
medzinar. ucastou při prilezitosti zalozenia Katedry geodet.
Zakladov "Geodeticke referencne systemy", STU Bratislava 2002,
pp. 89-100, Modely gravitacniho pole a jejich testovani.
110 Wagner C.A., Kostelecky J., Klokocnik J.: 2002,
27th GA ERS Nice France, April
On the Use of Ocean reflections of GPS Signal to Enhance Satellite Altimetry.
111 Gooding R.H., Wagner C.A., Reigber Ch., Klokocnik J., Kostelecky J.:
pres. at 2nd CHAMP Science Meeting, Potsdam, Germany, Sept. 2003,
CHAMP and Resonances.
112 Klokocnik J., Kostelecky J., Gooding R.H.:
J. Geod. 77: 30-40, 2003, On Fine Orbit Selection for Particular Geodetic and
Oceanographic Missions Involving Passage through Resonances.
113 Wagner C.A., Klokocnik J.:
J. Geod. 77: 128-138, 2003, The Value of Ocean Reflections of GPS Signals to Enhance
Satellite Altimetry: Data Distribution and Error Analysis.
114 Klokocnik J., Kostelecky J., Wagner C.A., Kocandrlova M.:
IUGG 2003, Sapporo, Japan, July, Geometry and Accuracy of Bistatic Altimetry,
115 Klokocnik J., Kostelecky J., Novak P.: 1st GA EGU, Nice, France,
April 2004, poster at G9 session,
On Future of Gravity Field Models Accuracy Assessments,
Bratislava, Slovakia, June 2004.
116 Gooding R.H., Wagner C.A., Klokocnik J., Kostelecky J.:
pres. at CHAMP&GRACE Science Meeting, Potsdam, Germany, June 2004,
Proceedings, CHAMP's Triple Passage through 31st/62nd-order Orbit Resonance.
117 Klokocnik J., Kostelecky J.: 2004,
pres. at 35th COSPAR Sci. Assembly, Paris, France, July,
Comeback of resonances? Champ and Grace.
118 Klokocník, J., Wagner, C.A., Kostelecký, J., Förste, Ch.
Accuracy assessment of gravity field models by independent satellite crossover altimetry.
In Satellite altimetry for geodesy, geophysics and oceanography.
Berlin : Springer, 2004, 161-165
International workshop of satellite altimetry, Wuhan, 08.09.2002-13.09.2002,
tez v upravene versi publ.: 50 years of the Reeserach Institute of Geodesy, Topography
and cartography, Jubilee Proc., Vol. 50, Publ # 36, VUGTK Zdiby, 2005
119 Vítek, F., Klokocník, J., Astro-archaeo-photo archive of Mexico, 2003,
publ.: Ondrejov: Astr.ústav, preprint 2004.
120 Klokocník, J., Kostelecký, J., Vondrák, J., Vítek, F.
Astronomická a neastronomická orientace význacných starovekých staveb Mesoameriky a další pozoruhodnosti z cesty do Mexika, Guatemaly a Hondurasu na jare r. 2005. Fotoarchiv. Ondrejov: Astronomický ústav, preprint 2005.
121 Klokocník, J., Kostelecký, J., Wagner, C.A., Schwintzer, P., Förste, Ch.,Scharroo, R.
Evaluation of the accuracy of the EIGEN-1S & 2 CHAMP-derived gravity field models.
J. Geod. 78, 7-8, 2005, s. 405-417. ISSN 0949-7714.
122 Kostelecký, J., Klokocník, J., Wagner, C.A.
Geometry and accuracy of reflecting points in bistatic satellite altimetry.
J. Geod. 79, 8, 2005, s. 421-430. ISSN 0949-7714.
123 Gooding, R.H., Wagner, C.A., Klokocník, J., Kostelecký, J., Reigber, Ch.
CHAMP and resonances. Berlin: Springer, 2005, 101-107. ISBN 3-540-22804-7.
124 Wagner, C.A., McAdoo,D., Klokocník, J., Kostelecký, J.
Degradation of geopotential recovery from short repeat-cycle orbits: application
to GRACE monthly fields. Journal of Geodesy 80, 2, 2006, 94-103. ISSN 0949-7714.
[Tez poster EGU Vienna 2006. Varianta tez: The 3rd Interntl GOCE User Workshop,
ESA-ESRIN Frascati, Italy, Novemebr 2006, publ. sborniku na CD].
125 Olivik, S., Kocandrlova, M., Kostelecky J., Klokocnik J.,
Position of reflecting points in bistatic satellite altimetry: theoretical solutions
for ellipsoid, ESA 3rd Interntl. Symp Satel. Altimetry: "15 Years of Progress in
Radar Altimetry", ESA Venice, March 2006, CD prednasek, i poster EGU Vienna 2006.
126 Klokocnik, J., Kostelecky J., Wagner C.A., Gruber Ch.,
Review of the use of satellite crossover altimetry to test the accuracy of the Earth ‚
gravity models, ESA 3rd Interntl. Symp Satel. Altimetry: "15 Years of Progress in
Radar Altimetry", ESA Venice, March 2006, publ. ve sborniku na CD.
127 Gooding, R.H., Wagner, C.A., Klokocník, J., Kostelecký, J., Gruber Ch.,
CHAMP and GRACE resonances, and the gravity field of the Earth,
Advances in Space Research, 39, 10, 2007, 1604-1611, ISSN 0273-1177.
128 Klokocnik J., Kostelecky J., Vitek F.,
Pyramids and ceremonial centers in Mesoamerica: were they oriented using
a magnetic compass?, Studia g. et. g., 2007, 51, 515-533.
129 Klokocnik J., Kostelecky J., Satellite altimetry in the Czech Republic: Status 2007,
Medwell J., 31-OJES, J. Earth Sci. 2, 2, 36-47, ISSN: 1991-7708.
130 Klokočník J, Kostelecký J, Böhm V, Böhm B, Vondrák J, Vítek F: 2008,
Correlation between the Mayan calendar and ours: Astronomy helps to answer
why the most popular correlation (GMT) is wrong,
Astronom. Nachrichten AN 329, 4, 426-436, DOI 10.1002/asna.200710892.
131 Klokocnik, J.; Wagner, C. A.; McAdoo, D.; Kostelecky, J.; Bezdek, A.; Novak, P.;
Gruber, Ch.; Marty, J.; Bruinsma, S. L.; Gratton, S.; Balmino, G.; Baboulin, M.
Gravity Field Parameter Estimation Using QR Factorization, AGU Fall Meeting 2007,
abstract #G33A-0893, http://adsabs.harvard.edu/abs/2007AGUFM.G33A0893K.
Also: Klokocnik J.: Changes in Accuracy of Gravity Recovery Due to Ground Track Variability: CHAMP, GRACE, AND GOCE (Planetary Geodynamics branch,
Nov. 28, 2007, room A128, Bldg. 33, NASA GSFC, Greenbelt, USA
132 Klokocnik, J.; Wagner, C. A.; McAdoo, D.; Kostelecky, J.; Bezdek, A.; Novak, P.;
Gruber, Ch., Changes in Accuracy and Resolvability of Gravity Recovery due to Ground
Track Variability: CHAMP, GRACE, and GOCE, AGU Fall Meeting 2007,
http://adsabs.harvard.edu/abs/2007
133 Klokočník J.(ed.), Bezděk A., Gruber Ch., Kostelecký J., Novák P., Pešek I., Vondrák J.:
2008, GOCE – specific tasks on fine gravity field structure of the Earth,
Detection of hidden impact (meteoritic) structures; Introd. study and simul. before
the GOCE launch, Report for ESA, PECS C 98056, Ondřejov, May 2008, 109 stran.
134 Klokocník, J., Kostelecký,J., Wagner C.A., Improvements in the radial
accuracy of satellite orbits from long-term altimetry: information from
covariance projections, poster G3 EGU 2007, Vienna, Publ.: 2008,
Improvement in the radial accuracy of altimeter-satellite due to the geopotential,
Earth-Science Reviews, Elsevier, 91, 106-120, DOI 10.1016/j.earscirev.2008.10.002.
135 Klokocnik, J., Wagner, C.A., McAdoo,D., Kostelecký, J., Bezdek A., Novak P.,
Changes in accuracy of gravity recovery due to ground track variability:
GRACE, CHAMP, and GOCE, poster EGU 2007 Vienna a modifikovane na AGU 2007,
San Francisko. Variations in the accuracy of gravity recovery due to ground track
variability: GRACE, CHAMP, and GOCE, J. Geod. 2008, 82, 917-927;
DOI 10.1007/s00190-008-0222-0.
Gruber Ch., Gooding R.H., Wagner C.A., Klokocnik J., Kostelecky J.,
CHAMP and Resonances, poster at EGU Vienna 2008, modifikace a update # 127.
136 Klokočník J., Chaco astronomy: An ancient American cosmology, by A. Sofaer,
book review, The Remote Sensing and Photogrammetry Soc.& Blackwell Publ.Ltd.,
2009, pp. 297-298.
137 Kostelecký J, Klokočník J., Satelite Altimetry in the Center of Earth Dynamics
Research, Czech Nat. Comm. of Geodesy and Geophys., Mission and Passion: Science,
special ed. P. Holota, Prague 2009, pp. 135-145.
138 Novák P., Kostelecký J, Klokočník J., Testing global geopotential models through a
comparison of a local quasi-geoid model and GPS/levelling data,
Studia g. et g. 2009, 53(1), 39-60.
139 Novák P., Klokočník J., Kostelecký J., Zeman A., Testing EGM08 using Czech
GPS/leveling data. Newton's Bulletin, 2009, # 4: pp. 126-132, ISSN 1810-8555.
140 Novák P., Kostelecký J., Klokočník J., The new global model of the Earth Gravitational
field EGM08. Geodetický a kartografický obzor (GaKO) 2009, 55(3): 44-53.
141 Klokočník J., Kostelecký J., Novák P., Bezděk A., Gruber Ch., Sebera J., Mapping the
Earth's gravitational field using GOCE. GaKO 2009, 55(97): 165-174.
142 Klokočník J., Kostelecký J., Pešek I., Novák P., Wagner C.A., Sebera J., Geophysical
applications of EGM08: search for impact craters on the Earth.
pres. at 6th EGU General Assembly, Vienna, April 2009, see also preliminary version:
EGM 07a: simulations for GOCE,
poster for IAG “Symp on Gravity, Geoid and Earth Observations 2008”,
Chania, Crete, Greece, 23-27 June, www.geomatlab.tuc.gr/GGEO2008
Modifikace tez:
Klokočník J., Kostelecký J., Pešek I., Novák P., Sebera J., Geophysical applications
of EGM08: detection of impact craters.
Meeting of the Centre of the Earth's Dynamic Research (CEDR). Třešt', Sept. 2009.
143 Bezděk A., Klokočník J., Kostelecký J., Floberghagen R., Gruber Ch., Simulation of free
fall and resonances in the forthcoming GOCE mission. Pres. at EGU GA Vienna 2009,
publ. in J. Geodynamics 2009, 48(1), 47–53.
144 Charvátová I., Klokočník J., Kolmaš J., Kostelecký J., Chinese tombs oriented by
a compass: Evidence from plaeomagnetic changes versus the age of tombs,
Pres. at EGU GA Vienna 2010, (in print in Studia g. et g., see below)
145 Klokočník J., Bezděk A., Kostelecký J., Sebera J., Orbit “tuning” of planetary orbiters for
maximum gain in accuracy of gravity field information,
J. Guidance, Control, and Dynamics 2010, 33, #3, 853-861.
146 Klokočník J., Novák P., Kostelecký J., Wagner C.A.: 2010, Detecting impact
craters using the EGM 08, Acta Geodyn. Geomater. 7, #1 (157), 71-97.
147 Klokočník J., Kostelecký J., Pešek I., Novák P., Wagner C.A., Sebera J.,
Candidates for multiple impact craters?: Popigai and Chicxulub as seen by the global
high resolution gravitational field model EGM08, Solid Earth EGU 2010, 1, 71-83,
DOI: 10.5194/se-1-71-2010.
See also: Is Chicxulub a double impact crater? Pres. at:
6th EGU A. von Humboldt Interntl. Conf. on Climate Change, Natural Hazards,
and Societies, Mérida, México, Section: The Cretaceous/Tertiary Boundary and the
Chicxulub Impact Crater, paper AvH6-5, 15 March 2010.
148 Klokočník J., Kostelecký J., Google Earth for the study of ancient civilizations,
pres. at 2nd Intrnl. Conf. on Advanced Geographic Info. Systems, Applics, and Services
GEOProcessing 2010, 10-16 Feb 2010, St. Maarten, Netherlands Antilles,
Proceedings at 2nd Intrnl. Conf. on Advanced Geographic Info. Systems, Applics, and
Services GEOProcessing 2010, IEEE Computer Soc., Conf. Publics., pp. 56-61,
DOI 10.1109/GEO Processing.2010.16.
149 Pešek I., Wagner C.A., Klokočník J., Kostelecký J., Sebera J.,
EGM 08 searches for hidden impact craters, with support from point mass modelling,
Pres. at EGU GA Vienna 2010, Geophys. Res. Abstracts 12, EGU2010-2121, 2010.
150 Sebera J., Wagner C. A., Bouman J., Bezděk A., Klokočník J., Kostelecký J., Novák P.,
Gravitational tensor in the GOCE reference frame by direct harmonic synthesis.
Pres. at EGU GA Vienna 2010, Geophys. Res. Abstracts 12, EGU2010-7103-3, 2010.
151 Sebera J., Bosch W., Bouman J., Kostelecký J., Klokočník J., Bezděk A.
Upward continuation of satellite altimeter data for GOCE validation.
Pres. at the ESA Living Planet Symposium, Bergen, Norway, 28 June – 2 July 2010.
152 Bezděk A., Klokočník J., KosteleckýJ., Floberghagen R., Sebera J.,
Some aspects of the orbit selection for the measurement phases of GOCE.
Pres. at the ESA Living Planet Symposium, Bergen, Norway, 28 June – 2 July 2010.
153 Klokočník J., Pavelka K., Nasca, Peru: Der „Astronaut“ ist ein Fischer,
Amerindian Research 2010, Bd. 5/2, #16, 166-168.
154 Kalvoda J., Klokočník J., Kostelecký J.,
Korelace morfogenetických stylů Nepálského Himálaje s modelem gravitačního pole
Země EGM2008. – Přednáška na XXII. sjezdu České geografické společnosti,
2. září 2010, Ostrava. (Sborník Abstr. XXII. sjezdu České geogr. spol.).
155 Kalvoda J., Klokočník J, Kostelecký J.,
Regional correlation of the Earth Gravitational Model 2008 with morphogenetic patterns
of the Nepal Himalaya, Acta Universitatis Carolinae, Geographica 2010, XLV, 2,
53 – 78, Prague. (SCOPUS)
156 Klokočník J., Bezděk A., Kostelecký J., 2010, Orbit tuning for GOCE measuring
phases and for planetary orbiters to maximize accuracy gain in the gravity fied mapping,
update of # 144, pres. at: session 4 „Earth Obs. Systems…“, WEGENER 2010,
15th Gen. Assembly Wegener, Sept. 14-17, 2010, Istanbul, Turkey.
157 Rajlich P., Klokočník J., Kostelecký J.: 2009, Zpřesněná stavba Českého impaktního kráteru podle podrobného celosvětového modelu gravitačního pole Země EGM 08, Sborník Jihoč. Muzea v Č. Buděj., Přírodní vědy, 49: 21-28.
158 Bezděk A., Klokočník J., Kostelecký J., Sebera J.: 2011, Gravity Field Modelling from Kinematic Positions using the Generalized Least Squares, pres. at: 4th Interntl.GOCE User Workshop, 31 March - 1 April, TU Munich.
159 Klokočník J., Kostelecký J., Sebera J.: 2011, Catalogue of Proved Impact Craters on the Earth as seen by Gravity Data, poster at the EGU GA, Vienna.
160 Klokočník J., Hadrava P.: 2011, Singing stairs of pyramids and possible ceremonials around them celebrating Quetzalcoatl in the Maya region and time, Amerindian Research, 6/2, #20, 118-120.
161 Kalvoda J., Klokočník J., Kostelecký J., Comparison of morphogenetic features of the Nepal Himalaya with the Earth Gravitational Model 2008. Acta Univ. Carolinae, Geographica XLV, 2, 53-72, (ISI / Proceedings – Conf. Proc. Cit. Index, Thomson /Reuthers)
163 Bezděk A,
Klokočník J, Kostelecký J, Floberghagen R, Sebera J, 2010.
Some aspects of the orbit selection for the measurement phases of GOCE. Proceedings
of
the ESA Living Planet Symposium, Bergen, Norway, 28 June – 2 July, ESA SP-686.
164 Charvátová I, Klokočník J,
Kostelecký J., Kolmaš J.: 2011, Chinese tombs oriented by a
compass: Evidence from paleomagnetic changes versus the age of tombs,
Studia g. et g. 55: 159-174.
165 Klokočník J., Kostelecký J., Pavelka K.: 2011, Google Earth: Inspiration and Instrument for the Study of Ancient civilizations, expanded version of 148, Geomatics, Proceedings XXIII 3 rd Interntl. CIPA Symp., Vol. 6, pp. 193- 211, Prague.
166 Bezděk A, Klokočník J, Kostelecký J, Sebera J, 2011. Gravity field modelling from kinematic positions using the generalized least squares. Presented at 4th International GOCE User Workshop, Technische Universität München, Germany, 31 March – 1 April.
167 Klokocnik J, Bezdek A, Kostelecky J, 2011. GNSS-R concept extended by a fine orbit tuning. Space Reflecto 2011, International Workshop on reflectometry, Calais, France,
27–28 Oct., publ. In: Advances of Space Research 49, 957-965,
DOI 10.1016/j.asr.2011.12.008.
168 Klokočník J., Kostelecký J.: 2012, Teotihuacan: Ausrichtung und Wasserbecken auf der Straße der Toten, Amerindian Research 7/1, #23, 34-40. ISSN: 1862-3867.
169 Klokočník J., Kostelecký J.: 2012, Palenque: Astronomical orientation of Pakal tomb and water management in the locality, Amerindian Research 7/2, #. 24, 102-108.
Též kráceno pro populární versi: VESMÍR 90, prosinec 2011, str. 712-713.
Též upraveno (referát) a kráceno (sborník) pro SEAC 2012, konf. hist. Ljubljana, publ.
in Antropological Notebooks 19, 305-317.
170 Klokočník J., Kostelecký J., Sebera J., Bezděk A., 2012: Comparison of EIGEN 6C and EGM 2008 gravity field models
via Marussi tensor computed for selected areas of the Earth
EGU Vienna, Geophys. Res. Abstracts 14, EGU 2012-1469, 2012
171 Klokočník J., Kostelecký J., Kalvoda J., Sebera J., Bezděk
A.: 2012, Towards A System of Data Systems in geoscience: Marussi Tensor and
Invariants of the Earth Gravity Field from Recent Global Gravity Models EGM
2008 and EIGEN 6C based on Satellite (GRACE or GOCE) and Terrestrial
Data, Japan Geoscience Union Meeting 2012, May 20-25,
Makuhari, Chiba, Tokyo, Japonsko, poster U01-P04.
172 Bezděk A., Klokočník J.,
Kostelecký J., Sebera J.: 2012, Calibration of Swarm accelero-meters by means of
kinematic orbits and gravity field models, SWARM Validation
worskhop, ESA/ESRIN Frascati, presented 20 June.
173 Bezděk A, Sebera J, Klokočník J, Kostelecký J, 2012. Global gravity field models from the GPS positions of CHAMP, GRACE and GOCE satellites. EGU General Assembly, Vienna, Austria, 26–27 April; Geophysical Research Abstracts, Vol. 14, EGU2012-5980.
174 Klokočník J, Gooding RH, Wagner CA., Kostelecký J, Bezděk A.: 2013, The Use of Resonant Orbits in Satellite Geodesy: A Review, Surv Geophys. 34, 1, 43-72.
ISSN 0169-3298. DOI 10.1007/s10712-012-9200-4.
175 Sebera, J., Wagner, C. A., Bezděk, A., Klokočník, J.: 2013, Short guide to direct gravitational field modelling with Hotine's equations. Journal of Geodesy, 87, 223-238. ISSN 0949-7714. 176 Böhm, V., Böhm, B., Klokočník, J., Vondrák, J., Kostelecký, J. 2013, Dating of Mayan Calendar using Long-periodic Astronomical Phenomena in Dresden Codexical Phenomena in Dresden Codex. Serbian Astronomical Journal, 186, 53-64. ISSN 1450-698X.
177 Kostelecký J., Bezděk A., Klokočník J.: 2013, Global and regional seasonal variations of the geoid detected by GRACE, presented at 13 Czech-Polish workshop on recent geodynamics of the Sudeten and adjacent areas, 22-24 Nov. 2012, Wroclaw, Poland, publ. in Acta Geod et Geomater. 2013, 10, 285-291. ISSN 1214-9705.
178 Pavelka, K., Klokočník J., Kostelecký J.: 2013, Astronomicko-historické otazníky Mezoameriky a Peru, Nakladatelství ČVUT, Praha, 287 s., ISBN 9788001052198.
179 Bezděk A., Sebera J., Klokočník J., Kostelecký J.: 2013, Average time-variable gravity from GPS orbits of recent geodetic satellites, VIII Hotine Marussi Symp. Rome, June 17-21.
180 Klokočník K, Bezděk A, 2013. From Kepler to Fine Orbit Tuning of GOCE,
ESA Living Planet Symp. 9-13 Sept. 2013, Edinburgh, Scotland.
181 Kalvoda J, Klokočník J, Kostelecký J, Bezděk A, 2013, A. Mass distribution of Earth landforms determined by aspects of the geopotential as computed from the global gravity field model EGM 2008. Acta Univ. Carolinae-Geogr., 48,17-25. ISSN 0300-5402.
182 Bezděk A., Sebera J., Klokočník J., Kostelecký J.: 2013, Gravity field models from kinematic orbits of CHAMP, GRACE and GOCE satellites, Adv. Space Res., in print.
183 Klokocnik J: 2013, Yurac Rumi bei Machu Picchu (Peru) hat eine astronomische Orientierung, AmerIndian Res. 8/4, 30, 264-267.
184 Klokočník J., Kostelecký J.: Úvod do archeoastronomie Mezoameriky a Peru,2013 Pokroky MFA, 58, 140-157; 2014 Pokroky MFA, 59, 55-69.
185 Klokočník J , Kalvoda J , Kostelecký J , A. Bezděk: 2013, Gravity Disturbances, the Marussi Tensor, Invariants and Other Functions of the Geopotential as Represented by the Global Gravity Field Model EGM 2008 and Suggestions for Geo-applications ,
ESA Living Planet Symp. 9-13 Sept. 2013, Edinburgh, Scotland. Publ. in: GGG, in review.
186 Klokočník J, Bezděk A, Kostelecký J (2014) Gravity signal at Ghawar, Saudi Arabia, from the global gravitational field model EGM 2008 and similarities around, Arab. J. Geosciences, on-line, doi: 10.1007/s12517-014-1491-y; ISSN 1866-7511, Springer.
Celkem 185
již vyšlých článků a přednášek (vyjma popularizace)
za období 1973-2013;
nejčastěji citované práce
starší (20x, dle Web of Sci.) 21
(8x): 6, 44
z nových prací (31x) 124.
update 21st August 2014 jklokocn@asu.cas.cz,
www.asu.cas.cz/~jklokocn