This map shows the geographic impact of R. Grard'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 R. Grard with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. Grard more than expected).
This network shows the impact of papers produced by R. Grard. 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 R. Grard. The network helps show where R. Grard may publish in the future.
Co-authorship network of co-authors of R. Grard
This figure shows the co-authorship network connecting the top 25 collaborators of R. Grard.
A scholar is included among the top collaborators of R. Grard 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 R. Grard. R. Grard is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Simões, F., R. Trautner, R. Grard, & M. Hamelin. (2004). THE DIELECTRIC PROPERTIES OF MARTIAN SOIL SIMULANT JSC MARS-1 IN THE FREQUENCY RANGE FROM 20Hz TO 10kHz.. LPI. 1901.1 indexed citations
3.
Trautner, R. & R. Grard. (2002). Measuring the electric properties of planetary environments with Mutual Impedance (MI) Probes. ESASP. 514. 105–107.1 indexed citations
4.
Bale, S. D., F. S. Mozer, M. André, et al.. (2001). The normal, thickness, and speed of the dusk magnetopause from Cluster Electric Field and Wave experiment measurements. AGU Spring Meeting Abstracts. 2001.1 indexed citations
5.
Grard, R., et al.. (1997). Development and Qualification of a Deployable Boom System for the Huygens Probe. ESASP. 410. 281.4 indexed citations
6.
Grard, R., M. Hamelin, B. Goldstein, et al.. (1996). Determination of the Conductivity and Permittivity of the Surface Material and Monitoring of the Outgassing Activity of the Cometary Nucleus. elib (German Aerospace Center). 27. 449.2 indexed citations
7.
Grard, R., et al.. (1994). Mercury Orbiter - an Interdisciplinary Mission. Lunar and Planetary Science Conference. 18(3). 197–205.10 indexed citations
Grard, R., et al.. (1989). Observations of the plasma environment of comet Halley during the Vega flybys.. Annales Geophysicae. 7. 141–149.9 indexed citations
10.
Grard, R.. (1989). First Results from Esa's Plasma-Wave System Aboard PHOBOS. 59. 30–33.1 indexed citations
11.
Trotignon, J. G., et al.. (1989). Electric-field measurements in comet P/Halley's environment by the high-frequency plasma-wave analyser.. Annales Geophysicae. 7. 331–340.1 indexed citations
12.
Grard, R., T. I. Gombosi, & R. Z. Sagdeev. (1986). The Vega missions.. ESASP. 1066. 49–70.1 indexed citations
13.
Grard, R. & J. Matthews. (1986). Simultaneous observations of the first and second harmonic field line resonances in the noon sector with GEOS-1 and GEOS-2. Annales Geophysicae. 4. 23–31.2 indexed citations
14.
McDonnell, J. A. M., J. Kissel, E. Grüen, et al.. (1986). Giotto's Dust Impact Detection System (DIDSY) and Particulate Impact Analyzer (PIA): Interim assessment of the dust distribution and properties within the coma. ESASP. 250. 25–38.8 indexed citations
15.
Grard, R.. (1984). An impact plasma monitor for cometary missions.. ESASP. 224. 87–88.1 indexed citations
16.
Grard, R.. (1981). a Planar Model of the Probe Electric Environment. ESASP. 39.1 indexed citations
17.
Grard, R.. (1976). The multiple applications of electron emitters in space. STIN. 77. 23369.1 indexed citations
Feuerbacher, B., M. Anderegg, B. Fitton, et al.. (1972). Photoemission from Lunar Surface Fines. Lunar and Planetary Science Conference. 3. 253.2 indexed citations
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive
bibliographic database. While OpenAlex provides broad and valuable coverage of the global
research landscape, it—like all bibliographic datasets—has inherent limitations. These include
incomplete records, variations in author disambiguation, differences in journal indexing, and
delays in data updates. As a result, some metrics and network relationships displayed in
Rankless may not fully capture the entirety of a scholar's output or impact.