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Author Title Year Publication (up) Serial Volume Pages
Antonius O, Bemerkungen über Bastarde und Bastardzucht 1933 655 9 39-47
Cheney D.L.; Seyfarth, R.M. How monkeys see the world: Inside the mind of another species 1990 706
In Zentall T.R, Galef B.G. (ed) Social Learning: Psychological and Biological Perspectives 709
McDonnell, S.M. (ed) The Equid Ethogram: A Practical Field Guide to Horse Behavior 2003 711
Ginsberg, J.R. Social organisation and mating strategies of an arid adapted equid: The Grevy`s zebra. 1988 766 268 pp
R Development Core Team R: A Language and Environment for Statistical Computing 2010 822
Wasilewski A. 'Friendship' in ungulates? – Sociopositive relationships between non-related herd members of the same species 2003 824
Huebener, E. Coaxing seat, breathing leg, whispering reins 2002 875 220
BACK DG et al, Observations on the sexual behaviour of nonlactating mares 1974 907 165 717-720
Backhaus D, Wie Zebras kämpfen 1960 912 56 8-10