Epstein H,. (1971). Descent and origin of the ass. (pp. 394–398).
|
Epstein H,. (1971). Wild Ass. In Epstein: The origin of the domestic animals of Africa. II, , 378–381.
|
Erz W,. (1964). Tooth eruption and replacement in Burchell's Zebra. Arnoldia, 1, 1–8.
|
Estes Rd,. (1967). Trials of a zebra herd stallion. Nat Hist, 76, 58–65.
|
Estes Rd,. (1974). Zebras offer clues to the way wild horses once lived. Smithsonian, 5, 100–107.
|
Ewart Jc,. (1903). The wild horse. Nature, 68, 271–274.
|
Fagen Rm, G. T. (1977). Play behavior and exercise in young ponies. Behav Ecol Sociobiol, 2, 267–269.
|
Fao,. (1986). The Przewalski horse and restoration to its natural habitat in Mongolia. JO FAO Animal Production and Health Paper. Animal Production and Health Paper, 61.
|
Fedak Ma, S. H. (1979). Reappraisal of energetics of locomotion shows identical cost in bipeds and quadrupeds including ostrich and horse. Nature, 282, 713–716.
|
Fielding D,. (1988). Reproductive characteristics of the Jenny donkey – Equus Asinus: a review. Trop Anim Hlth Prod, 20, 161–166.
|