This map shows the geographic impact of Herbert Frey'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 Herbert Frey with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Herbert Frey more than expected).
This network shows the impact of papers produced by Herbert Frey. 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 Herbert Frey. The network helps show where Herbert Frey may publish in the future.
Co-authorship network of co-authors of Herbert Frey
This figure shows the co-authorship network connecting the top 25 collaborators of Herbert Frey.
A scholar is included among the top collaborators of Herbert Frey 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 Herbert Frey. Herbert Frey 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.
Frey, Herbert. (2014). Mi Nietzsche en México: historia de un acercamiento. SHILAP Revista de lepidopterología. 35–47.1 indexed citations
2.
Lillis, R. J., S. J. Robbins, Michael Manga, J. S. Halekas, & Herbert Frey. (2013). Time history of the Martian dynamo from crater magnetic field analysis. AGUFM. 2013.
3.
Morrison, Sarah & Herbert Frey. (2007). Crater Densities in Noachis Terra: Evidence for Overlapping Ejecta from Argyre and Hellas. Lunar and Planetary Science Conference. 1355.1 indexed citations
4.
Frey, Herbert, et al.. (2005). Relative Ages of the Highlands, Lowlands, and Transition Zone Along a Portion of the Mars Crustal Dichotomy from Densities of Visible and Buried Impact Craters. 36th Annual Lunar and Planetary Science Conference. 2383.2 indexed citations
5.
Frey, Herbert, et al.. (2003). Evidence for Buried "Pre-Noachian" Crust Pre-Dating the Oldest Observed Surface Units on Mars. Lunar and Planetary Science Conference. 1848.9 indexed citations
6.
Frey, Herbert. (2002). Age and Origin of the Crustal Dichotomy in Eastern Mars. 1727.4 indexed citations
7.
Frey, Herbert, S. E. H. Sakimoto, & J. H. Roark. (1998). MOLA Topography and Stratigraphy of Geologic Units at the Dichotomy Boundary: The Medusae Fossae Formation. LPI. 1619.2 indexed citations
8.
Frey, Herbert & J. H. Roark. (1997). Lowlying Ancient Terrain (LAT) on Mars: The Western Arabian Shelf (WAS). LPI. 383.1 indexed citations
9.
Frey, Herbert, B. G. Bills, R. S. Nerem, & J. H. Roark. (1995). The Isostatic State of Martian Topography--Revisited. Lunar and Planetary Science Conference. 26. 427.2 indexed citations
10.
Frey, Herbert, B. G. Bills, W. S. Kiefer, et al.. (1993). New Mars free-air and Bouguer gravity: Correlation with topography, geology and large impact basins. 513.1 indexed citations
11.
Mattfeldt, Torsten, Ulrich Vogel, Hans‐Werner Gottfried, & Herbert Frey. (1993). Second-order stereology of prostatic adenocarcinoma and normal prostatic tissue. Image Analysis & Stereology.10 indexed citations
12.
Frey, Herbert. (1992). Thermal History and Climatic Implications of Early Hesperian Ages for Presumed Noachian Age Volcanic Flows on Mars. Lunar and Planetary Science Conference. 23. 385.2 indexed citations
13.
Frey, Herbert, et al.. (1988). Extent of Buried Cratered Terrain Underlying the Highland/Lowland Transition Zone in Eastern Mars. LPI. 19. 360.1 indexed citations
14.
Frey, Herbert, Richard A. Schultz, & T. A. Maxwell. (1986). The Martian Crustal Dichotomy: Product of Accretion and not a Specific Event?. NASA STI Repository (National Aeronautics and Space Administration). 241–242.2 indexed citations
15.
Frey, Herbert. (1986). Pseudocraters as Indicators of Ground Ice on Mars. NASA STI Repository (National Aeronautics and Space Administration). 239–240.3 indexed citations
16.
Frey, Herbert, et al.. (1981). Martian Pseudocraters: Searching the Northern Plains. LPI. 297–299.3 indexed citations
17.
Frey, Herbert. (1980). Improving the Performance of Poor Readers through Autogenic Relaxation Training.. The Reading Teacher. 33(8).12 indexed citations
18.
Frey, Herbert, et al.. (1979). Large Impact Basins on Mercury: Implications for Relative Crater Production Rates. LPI. 402–404.1 indexed citations
19.
Frey, Herbert & Paul D. Lowman. (1978). Comparative planetology: Significance for terrestrial geology. Unknow.2 indexed citations
20.
Frey, Herbert & Paul D. Lowman. (1976). Impact Basin Formation and the Early Terrestrial Crust. Bulletin of the American Astronomical Society. 8. 465.1 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.