TY - JOUR A1 - Kortlandt, Adriaan T1 - The Use of (Rudimentar) Weapons by Apes and Man (Appendix I.), >Hunting< and >Predatory< Behavior in Chimpanzees and Man (Appendix II.), JF - Kortland, A.: New Perspectives on Ape and Human, Amsterdam 1972, pp. 79-91. Y1 - 1972 N1 - Xeroxcopy - with marks ER - TY - JOUR A1 - Kortlandt, Adriaan T1 - Chimpanzees in the Wild. JF - Scientifi American Vol. 206 (1962), pp. 128–138. Y1 - 1963 N1 - Xeroxcopy - with notes ER -