This map shows the geographic impact of R. A. Freitas'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. A. Freitas with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. A. Freitas more than expected).
This network shows the impact of papers produced by R. A. Freitas. 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. A. Freitas. The network helps show where R. A. Freitas may publish in the future.
Co-authorship network of co-authors of R. A. Freitas
This figure shows the co-authorship network connecting the top 25 collaborators of R. A. Freitas.
A scholar is included among the top collaborators of R. A. Freitas 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. A. Freitas. R. A. Freitas is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Freitas, R. A.. (2000). NANODENTISTRY. The Journal of the American Dental Association. 131(11). 1559–1565.89 indexed citations
7.
Freitas, R. A.. (1985). Observable characteristics of extraterrestrial technological civilisations.. JBIS. 38. 106–112.3 indexed citations
8.
Freitas, R. A. & F. Valdés. (1984). The Search for Extraterrestrial Artifacts (SETA).17 indexed citations
9.
Freitas, R. A.. (1983). Terraforming Mars and Venus Using Machine Self-Replicating Systems (srs). JBIS. 36. 139.10 indexed citations
10.
Freitas, R. A.. (1983). Extraterrestrial intelligence in the solar system: resolving the Fermi paradox.. Journal of the British Interplanetary Society. 36(3). 496–72.11 indexed citations
11.
Freitas, R. A.. (1983). The case for interstellar probes.. Journal of the British Interplanetary Society. 36. 490–495.8 indexed citations
12.
Valdés, F. & R. A. Freitas. (1980). Comparison of reproducing and nonreproducing starprobe strategies for galactic exploration. Journal of the British Interplanetary Society. 33. 402–406.11 indexed citations
13.
Freitas, R. A.. (1980). Interstellar probes - A new approach to SETI. Journal of the British Interplanetary Society. 33. 95–100.14 indexed citations
14.
Freitas, R. A.. (1980). A self-reproducing interstellar probe.. Journal of the British Interplanetary Society. 33. 251–264.47 indexed citations
15.
Freitas, R. A.. (1977). Metalaw and interstellar relations.. 6(2). 15–17.2 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.