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PERSEE Program, 1997
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PERSEE Program, 1991
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PERSEE Program, 1988
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Society of Vertebrate Paleontology, 1984
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Oxford University Press (OUP), 1968
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The American Ornithologists' Union, 1968
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Cambridge University Press (CUP), 1997
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Informa UK Limited, 1984
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Informa UK Limited, 1982
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University of Oklahoma, 1982
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JSTOR, 1969
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Wiley, 2002
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PERSEE Program, 2000
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JSTOR, 1997