Responses of wild chimpanzees and gorillas to the arrival of primatologists: Behaviour observed during habituation
Box HO (ed). London, Chapman & Hall
Tutin CEG, Fernandez M: Responses of wild chimpanzees and gorillas to the arrival of primatologists: Behaviour observed during habituation; in Box HO (ed): Primate Responses to Environmental Change. London, Chapman & Hall, 1991, pp 187-197.
Habituation of bonobos (Pan paniscus): First reactions to the presence of observers and the evolution of response over time
Van Krunkelsven E, Dupain J, Van Elsacker L, Verheyen R: Habituation of bonobos (Pan paniscus): First reactions to the presence of observers and the evolution of response over time. Folia Primatol 1999;70:365-368.
Subspecific variation in gorilla behaviour: The influence of ecological and social factors
Robbins MM, Sicotte P, Stewart KJ (ed). New York, Cambridge University Press
Doran DM, McNeilage A: Subspecific variation in gorilla behaviour: The influence of ecological and social factors; in Robbins MM, Sicotte P, Stewart KJ (ed): Mountain Gorillas: Three Decades of Research at Karisoke. New York, Cambridge University Press, 2001, pp 123-149.
Preliminary results of the studies on wild western lowland gorillas and other sympatric diurnal primates in the Ndoki Forest, Northern Congo
Itoigawa N, Sugiyama Y, Sackett GP, Thompson RK (eds). Tokyo, University of Tokyo Press: Behaviour, Ecology and Conservation
Mitani M: Preliminary results of the studies on wild western lowland gorillas and other sympatric diurnal primates in the Ndoki Forest, Northern Congo; in Itoigawa N, Sugiyama Y, Sackett GP, Thompson RK (eds): Topics in Primatology. Tokyo, University of Tokyo Press, 1992, vol 2: Behaviour, Ecology and Conservation, pp 215-224.