This map shows the geographic impact of J. Grygar's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by J. Grygar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J. Grygar more than expected).
This network shows the impact of papers produced by J. Grygar. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by J. Grygar. The network helps show where J. Grygar may publish in the future.
Co-authorship network of co-authors of J. Grygar
This figure shows the co-authorship network connecting the top 25 collaborators of J. Grygar.
A scholar is included among the top collaborators of J. Grygar based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with J. Grygar. J. Grygar is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
All Works
20 of 20 papers shown
1.
Grygar, J., et al.. (2017). Orbital period changes in RW CrA, DX Vel and V0646 Cen. 47(1). 29–52.
Chochol, D., et al.. (2003). Analysis of multicolour light curves of southern eclipsing binaries GW Car, V685 Cen, V742 Cen and V764 Sco. 33(2). 107–118.1 indexed citations
4.
Chochol, D., C. J. van Houten, T. Pribulla, & J. Grygar. (2001). Analysis of multicolour light curves of the eclipsing binaries AQ Tuc and AY Vel. 31(1). 5–12.1 indexed citations
5.
Chochol, D., et al.. (1997). The expansion of the envelope of Nova V1974 Cygni and the distance problem. 318(3). 908–924.2 indexed citations
6.
Chochol, D., et al.. (1993). Spectroscopic and photometric behaviour of Nova Cygni 1992 in the first nine months following outburst. 277(1). 103–113.1 indexed citations
Chochol, D., K. K. Chuvaev, Р. Е. Гершберг, et al.. (1989). The Kuwano-Honda's peculiar object (PU Vulpeculae) in 1983-1986.. 223. 119–135.1 indexed citations
Šimek, M., et al.. (1981). The Relation between Meteor Optical Brightness and the Properties of the Ionized Trail. II. The Observation at the Ondřejov Site. (Results of the 1972 and 1973 Ondřejov Meteor Expeditions). Bulletin of the Astronomical Institutes of Czechoslovakia. 32. 1.1 indexed citations
15.
Grygar, J., et al.. (1980). The Relation between Meteor Optical Brightness and Properties of the Ionized Trail. I. Observational Techniques and Basic Characteristics of the Observational Data (Results of the Meteor Expeditions Ondřejov 1972 and 1973). 31. 14.2 indexed citations
16.
Chochol, D. & J. Grygar. (1976). Spectral Line Variations of the Early-Type Star 10 Lacertae in the Years 1972-1973. Bulletin of the Astronomical Institutes of Czechoslovakia. 27. 181.
Kohoutek, L., et al.. (1970). Comparison of radar and optical meteor observations. Results of the meteor expedition Ondřejov 1962. 21. 18.1 indexed citations
19.
Grygar, J.. (1965). Application of the non-linear laws of limb darkening on eclipsing binaries. II. Limb darkening from model atmospheres. 16. 195.1 indexed citations
20.
Vanýsek, V., J. Grygar, & Z. Sekanina. (1959). The initial velocity on the tail of comet 1956h. Bulletin of the Astronomical Institutes of Czechoslovakia. 10. 116.1 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
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research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
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Rankless may not fully capture the entirety of a scholar's output or impact.