@article{Zing1960, author = {Yang Kuo Zing}, title = {Studies on the Basic Factors in Animal Fighting: V. Inter-Species Coexistence in Fish, VI. Inter-Species Coexistence in Birds, VII: Inter-Species Coexistence in Mammals}, journal = {Journal of Genetic Psychology, (97, 1960), pp. 181-194, 195-209, 211-225.}, year = {1960}, }