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Nitschelm D, H. V. D. C. (1977). The influence of chlormadinone acetate treatment on the concentration of some stereoids in the blood, on the ovarian activity and on.. Tijdschr Diergeneesk, 102, 861–872.
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Nitschelm D, H. V. D. C. (1977). The influence of chlormadinone acetate treatment on the concentration of some stereoids in the blood, on the ovarian activity, and on the sexual behaviour of the.. Tijdschr Diergeneesk, 102, 61–872.
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Robertshaw D, T. C. (1969). Sweat gland function of the donkey. J Physiol, 205, 79–89.
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Heyes, C., & Galef, B. G. (Eds.). (1996). Social learning in animals: the roots of culture. San Diego, CA: Academic Press, Inc.
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Briand Petersen, J. C., & Casebeer, R. L. (1971). A bibliography relating to the ecology and energetics of East African large mammals. E. Afr. Wildl. J., 9, 1–23.
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Briand Petersen, J. C. (1972). An identification system for zebra (Equus burchelli, Gray). E. Afr. Wildl. J., 10, 59–63.
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Mitchell, B. L., Skenton, J. B., & Uys, J. C. M. (1965). Predation on large mammals in Kafue National Park. Zool. Afr, 1, 297–318.
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De Moraes Ferrari, E. A., & Todorov, J. C. (1980). Concurrent avoidance of shocks by pigeons pecking a key. J Exp Anal Behav., 30(3), 329–333.
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Heipertz- Hengst, C. (1999). Pferde richtig trainieren. Lüneburg: Cadmos.
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Slater, P., Rosenblatt, J., Snowdon, C., & Roper, T. (2001). ADVANCES IN THE STUDY OF BEHAVIOR, 31 (Vol. 31). ACADEMIC PRESS.
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