1. Field observations on a howling monkey society;Altmann;J. Mammal.,1959
2. Saimiri sciureus as an experimental animal;Beischer;Anat. Record,1964
3. Das sogenannte Urinmarkieren von Totenkopfaffen (Saimiri sciureus) in Abhängigkeit von umweltbedingten und emotionalen Faktoren;Castell;Folia Primatol.,1967
4. A field study of the behavior and social relations of howling monkeys;Carpenter;Comp. Psychol. Monographs,1934
5. Baboon ecology;DeVore,1965