Published in Mammal Study, in 1997, in volume 22, pages 71-80
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Published in Mammal Study, in 1996, in volume 21, pages 137-151
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Published in Zoological Science, in 1993, in volume 10, pages 983-990
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Published in Zoological Science, in 1994, in volume 11, pages 883-887
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Published in Zoological Science, in 1993, in volume 10, pages 521-527
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Published in Zoological Science, in 1994, in volume 11, pages 537-545
Created: 2012-09-19, modified: 2012-09-19