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Author (up) Title Year Publication Serial Volume Pages
Galdikas, B.M. Orangutan tool use 1989 Science (New York, N.Y.) 2847 243 152
Linton, M.L. Washoe the chimpanzee 1970 Science (New York, N.Y.) 2849 169 328
Rumbaugh, D.M.; Riesen, A.H.; Wright, S.C. Creative responsiveness to objects: a report of a pilot study with young apes 1972 Folia Primatologica; International Journal of Primatology 4183 17 397-403