1. Altmann, S. A., 1962, A field study of the sociobiology of rhesus monkeys, Macaca mulatto, Ann. N.Y. Acad. Sci. 102: 338–435.
2. Altmann, S. A., 1965, Sociobiology of rhesus monkeys. II. Stochastics of social communication,. J. Theoret. Biol.
8: 490–522.
3. Baerends, G. P., Brouwer, R., and Waterbolk, H. T., 1955, Ethological studies on Lebistes reticulatus (Peters): I. An analysis of the male courtship pattern, Behaviour
8: 249–334.
4. Barlow, G. W., 1968, Ethological units of behavior, in “The Central Nervous System and Fish behavior” (D. Ingle, ed.) pp. 217–232, University of Chicago Press, Chicago.
5. Bateson, G. 1955, A theory of play and fantasy, Psychiat. Res. Rep.
2: 39–51.