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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1964 May;51(5):934–941. doi: 10.1073/pnas.51.5.934

THE EVOLUTION OF LIVING SYSTEMS

Ernst Mayr 1
PMCID: PMC300188  PMID: 14173013

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