|
Dirschl Hj, W. S. (1978). Population indices and distribution of the Grevy's Zebra in Kenya, 1977. Aerial Survey Rep, 4.
|
|
|
Dittrich L,. (1964). Mähnenlose Zebras im Zoo Hannover. Z Säugetierk, 29, 100–104.
|
|
|
Dobroruka Lj,. (1961). Eine Verhaltensstudie des Przewalski- Urwildpferdes (Equus przewalskii Poliakiow 1881) in dem Zoologischen Garten Prag. Equus, 1, 89–104.
|
|
|
DOBRORUKA LJ et al,. (1987). An analysis of the population of Grevy's zebra. Int Zoo Yb, 26, 290–293.
|
|
|
Dolan Jm,. (1982). Przewalski's horse, Equus przewalskii Poliakov, 1881, in the United States prior to 1940 and its influence of the present breeding. Zool. Garten., 52, 49–65.
|
|
|
Dollman Jg,. (1935). A new race of wild ass from the Sudan, Asinus asinus dianae. Proc LInnean Soc Lond May, , 132–135.
|
|
|
Doreau M,. (1978). Comportement alimentaire du cheval à l`écurie. Ann Zootech, 27, 291–302.
|
|
|
DOREAU M et al,. (1980). Activités alimentaires nocturnes du cheval au pâturage. Ann Zootech, 29, 299–304.
|
|
|
Dovtschin N,. (1961). The Przewalski horse in Mongolia. Equus, 1, 22–27.
|
|
|
Duncan P,. (1979). Time-budgets of Camrgue horses; II. Time- budgets of adult horses and weaned sub-adults. Behaviour, 72, 26–49.
|
|