1. Observations on lions in Serengeti National Park, Tanganyika;Adamson;E. Afr. Wildl. J.,1964
2. Beobachtungen über das Frei-leben der Lelwel-Kuhantilopen (Alcelaphus buselaphus lelwel Heuglin 1877) und Gelegen-heitsbeobachtungen an Sennar-Pferdeantilopen (Hippotragus equinus bakeri, Heuglin 1863);Backhaus;Z. Säugetierkde.,1959
3. Territorial behavior in Uganda kob;Buechner;Science,1961
4. A field study of the behavior and social relations of the howling monkeys (Alouatta palliata);Carpenter;Comp. Psychol. Monogr.,1934
5. Croze , H. G. 1965 Searching image-crows ( Corvus corone ) and camouflaged prey