|
Werth E,. (1929). Zur Abstammung des Hausesels. Sitzungsber Ges Naturforsch Freunde, , 1–3, 342–355.
|
|
|
Grzimek, B. (1943). Zum Erkennen vertrauter Menschen dürch Tiere. Zeitschrift für Tierpsychologie, 5(2), 431–438.
|
|
|
Hediger H,. (1940). Zum Begriff der biologischen Rangordnung. Rev Suisse Zool, 47, 135–143.
|
|
|
Lamarck, J. - B. (1909). Zoologische Philosophie,Mit Einleitung und Anhang: Das phylogenetische System der Tiere nach Haeckel. Leipzig: Kröner.
|
|
|
BOURDELLE E. (1941). Zebres et couaggas Bull. Bull Soc Nationale d'Acclimat, 88, 169.
|
|
|
Tratz, P. Zebrastreifung eines Norwegerpferdes.
|
|
|
Klingel H,. (1974). Zebras. Wildlife Clubs of Kenya.8–13.
|
|
|
Duncan P,. (1992). Zebras, asses, and horses. Broadview, Illinois: Kelvyn Press.
Abstract: Provides summaries of the conservation status, biology, and ecology of wild zebras, asses, and horses. The Action Plan presents chapters on taxonomy, genetics, reproductive biology, population dynamics, management, disease and epidemiology, and the importance of developing an assessment methodology that considers the role of equids in ecosystems.
|
|
|
Estes Rd,. (1974). Zebras offer clues to the way wild horses once lived. Smithsonian, 5, 100–107.
|
|
|
Stevens, J. A. (1994). Zebras in Turmoil. Int Wildl, 24, 4–12.
|
|