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Citations
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Antonius, O. (1928). Beobachtungen an Einhufern in Schönbrunn. II. Die Mongolischen Wildpferde. Zool. Garten., , . 87–98.
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Antonius, O. (1928). Beobachtungen an Einhufern in Schönbrunn. III. Über Zebras, insbesondere das Burchellzebra. Zool. Garten., , , 165–182.
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Antonius O,. (1928). Beobachtungen an Einhufern in Schönbrunn. IV. Afrikanische Esel. Zool. Garten., , 289–296.
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Antonius O,. (1931). Beobachtungen an Einhufern in Schönbrunn. VI Ein interessantes Ponyfohlen. Zool. Garten., , 158–159.
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Berger, J. (1986). Wild horses of the Great Basin. Chicago: University of Chicago Press.
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Cheney D.L., & Seyfarth, R. M. (1990). How monkeys see the world: Inside the mind of another species. Chicago: University of Chicago Press.
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In Zentall T.R, G. B. G. (Ed.). Social Learning: Psychological and Biological Perspectives. Lawrence Erlbaum Associates.
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McDonnell, S. M. (Ed.). (2003). The Equid Ethogram: A Practical Field Guide to Horse Behavior. Lexington, Kentucky: Eclipse Press.
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Ginsberg, J. R. (1988). Social organisation and mating strategies of an arid adapted equid: The Grevy`s zebra. Ph.D. thesis, Princeton University, Princeton.
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Pinkus, S., Smith, J., & Jolly, A. (2006). Feeding Competition Between Introduced Eulemur fulvus and Native Lemur catta During the Birth Season at Berenty Reserve, Southern Madagascar. In Ringtailed Lemur Biology (pp. 119–140).
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