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Claßen, Dorothee
(2011).
Social relationships in captive Bornean orangutans (Pongo pygmaeus).
PhD thesis, Universität zu Köln.
![]() | Up a level |
Claßen, Dorothee
(2011).
Social relationships in captive Bornean orangutans (Pongo pygmaeus).
PhD thesis, Universität zu Köln.