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Author (up) Title Year Publication Serial Volume Pages
Assersohn, C.; Whiten, A.; Kiwede, Z.T.; Tinka, J.; Karamagi, J. Use of leaves to inspect ectoparasites in wild chimpanzees: a third cultural variant? 2004 Primates 733 45 255-258
Bonnie, K.E.; de Waal, F.B.M. Affiliation promotes the transmission of a social custom: handclasp grooming among captive chimpanzees 2006 Primates 161 47 27-34