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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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Richard Bellman (Thu,) studied this question.
synapsesocial.com/papers/6a1ca0f8732133fe9885b53d — DOI: https://doi.org/10.1073/pnas.40.4.231
Richard Bellman
Bryn Mawr College
Proceedings of the National Academy of Sciences
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