Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies
if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the
same subfield and year (this is the minimum needed to enter the top 1%, not the average
within it), or reaches the top citation threshold in at least one of its specific research
topics.
FCM: The fuzzy c-means clustering algorithm
19844.6k citationsRobert Ehrlich, William E. Full et al.profile →
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
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Countries citing papers authored by Robert Ehrlich
Since
Specialization
Citations
This map shows the geographic impact of Robert Ehrlich'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 Robert Ehrlich with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Robert Ehrlich more than expected).
This network shows the impact of papers produced by Robert Ehrlich. 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 Robert Ehrlich. The network helps show where Robert Ehrlich may publish in the future.
Co-authorship network of co-authors of Robert Ehrlich
This figure shows the co-authorship network connecting the top 25 collaborators of Robert Ehrlich.
A scholar is included among the top collaborators of Robert Ehrlich 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 Robert Ehrlich. Robert Ehrlich 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.
Jarman, Walter M., et al.. (2000). Unmixing polychlorinated biphenyl source fingerprints in surface waters of San Francisco Bay. Environmental Science & Technology. 34.1 indexed citations
Ehrlich, Robert, et al.. (1978). Sources and nonsources of beach sand along the southern Monterey Bay, California; Fourier shape analysis. Abstracts with Programs - Geological Society of America. 10(3). 142.1 indexed citations
17.
Eppler, Duane T., Dag Nummedal, & Robert Ehrlich. (1978). Structural Implications of Lunar Crater Elongation. Lunar and Planetary Science Conference. 294–296.1 indexed citations
18.
Eppler, Duane T., Dag Nummedal, & Robert Ehrlich. (1977). Fourier analysis of planimetric lunar crater shape - Possible guide to impact history and lunar geology. NASA Technical Reports Server (NASA). 511–526.2 indexed citations
19.
Vogel, Thomas A., Robert Ehrlich, & W. C. Luth. (1973). Non-Linear Variation of Cell Parameters with Composition in Alkali Feldspar Series. American Mineralogist. 58. 905–908.4 indexed citations
20.
Ferm, John C. & Robert Ehrlich. (1967). PETROLOGY AND STRATIGRAPHY OF THE ALABAMA COAL FIELDS.4 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.