@article{Loizos, author = {Loizos, C.}, title = {Play Behaviour in Higher Primates: A Review}, series = {D. Morris (Ed.), Primate Ethology, London (Weidenfeld and Nicolson) 1967, pp. 176-218. Caroline}, journal = {D. Morris (Ed.), Primate Ethology, London (Weidenfeld and Nicolson) 1967, pp. 176-218. Caroline}, language = {en} } @article{Loizos, author = {Loizos, C.}, title = {An ethological study of Chimpanzee play}, series = {C. R. Carpenter (Ed.) Behaviour, New York and Basel (S. Karger) 1969, pp. 87-93.}, journal = {C. R. Carpenter (Ed.) Behaviour, New York and Basel (S. Karger) 1969, pp. 87-93.}, language = {en} }