%0 Journal Article %A Gomes, Cristina M. %A Boesch, Christophe %+ Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society Chimpanzees, Department of Primatology, Max Planck Institute for Evolutionary Anthropology, Max Planck Society %T Reciprocity and trades in wild West African chimpanzees : %G eng %U https://hdl.handle.net/11858/00-001M-0000-000F-F347-A %F EDOC: 573649 %R 10.1007/s00265-011-1227-x %D 2011 %* Review method: peer-reviewed %J Behavioral Ecology and Sociobiology %V 65 %N 11 %& 2183 %P 2183 - 2196