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Author (up) Title Year Publication Serial Volume Pages
Boesch C; Boesch H Tool use and tool making in wild chimpanzees 1990 Folia Primatol. 2983 54 86
Boesch C; Boesch H Possible causes of sex differences in the use of natural hammers by wild chimpanzees 1984 J. Hum. Evol. 2981 13 415
Boesch C; Boesch H Mental maps in wild chimpanzees: an analysis of hammer transports for nut cracking 1984 Primates 2982 25 160