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books.google.com
3. Israel, G., Gasca, A.M.: The Biology of Numbers – The Correspondence of Vito Volterra on Mathematical Biology. Birkhäuser, Basel (2002)
4. Kingsland, S.E.: Modeling Nature, Episodes in the History of Population Ecology, 2nd edn. University of Chicago Press (1995).
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5. Lotka, A.J.: Analytical note on certain rhythmic relations in organic systems. Proc. Natl. Acad. Sci.
6, 410–415 (1920).
www.pnas.org