Proceedings of the National Academy of Sciences · 1965 · 34 citations · 2 references
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.
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G. T. Whyburn · Proceedings of the National Academy of Sciences · 1964 · 11 citations · Full text