This map shows the geographic impact of R. Landheim'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. Landheim with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. Landheim more than expected).
This network shows the impact of papers produced by R. Landheim. 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. Landheim. The network helps show where R. Landheim may publish in the future.
Co-authorship network of co-authors of R. Landheim
This figure shows the co-authorship network connecting the top 25 collaborators of R. Landheim.
A scholar is included among the top collaborators of R. Landheim 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. Landheim. R. Landheim is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Cabrol, Nathalie A., E. A. Grin, R. Landheim, R. Greeley, & R. O. Kuzmin. (1999). About the "Non-Evidence" of a Paleolake in Gusev Crater, Mars. Lunar and Planetary Science Conference. 1030.1 indexed citations
Cabrol, Nathalie A., Lasse Heje Pedersen, V. C. Gulick, et al.. (1998). Atacama III: Meteorite Search During the Nomad Field Tests: Perspectives on Automated Field Operations by Teleoperated Vehicles in Extreme Environments. Lunar and Planetary Science Conference. 1014.2 indexed citations
9.
Cabrol, Nathalie A., V. C. Gulick, R. Keaten, et al.. (1998). Atacama II: Nomad Rover Sample 1-250697 and Implications for Fossil Characterization During Mars Exploration. Lunar and Planetary Science Conference. 1111.2 indexed citations
10.
Cabrol, Nathalie A., J. M. Dohm, V. C. Gulick, et al.. (1998). Atacama I: Science Results of the 1997 Nomad Rover Field Test in the Atacama Desert, Chile. Lunar and Planetary Science Conference. 1013.7 indexed citations
Grin, E. A., et al.. (1998). Gusev Crater Paleolake: Two-Billion Years of Martian Geologic, (and Biologic?) History. NASA Technical Reports Server (NASA).1 indexed citations
Kuzmin, R. O., R. Greeley, R. Landheim, & Nathalie A. Cabrol. (1997). Geologic Mapping of Gusev Crater-Ma'adim Vallis Region, Mars. Lunar and Planetary Science Conference. 779.2 indexed citations
15.
Cabrol, Nathalie A., R. Landheim, & E. A. Grin. (1997). Ma'adim Vallis Paleocourses. LPI. 195.3 indexed citations
Landheim, R., Nathalie A. Cabrol, R. Greeley, & Jack D. Farmer. (1994). Stratigraphic Assessment of Gusev Crater as an Exobiology Landing Site. LPI. 769.6 indexed citations
18.
Landheim, R., R. Greeley, David J. DesMarais, Jack D. Farmer, & Harold P. Klein. (1993). Mars Exobiology Landing Sites for Future Exploration. 845.2 indexed citations
19.
Landheim, R., et al.. (1992). Radar-Visible Wind Streaks on Venus Compared with Terrestrial Analogs. Lunar and Planetary Science Conference. 23. 755.3 indexed citations
20.
Landheim, R. & N. G. Barlow. (1991). Relative chronology of Martian volcanoes. NASA Technical Reports Server (NASA). 22. 41–43.2 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.