|
|
Ridewood Wg,. (1901). On the hairs of Equus Burchelli and E. Zebra Proc Zool Soc Lond, 1, 87–88.
|
|
|
|
Ridgeway W,. (1909). Contributions to the study of the Equidae; the differentation of the three species of zebras. Proc Zool Soc Lond, , 547–586.
|
|
|
|
RÖHRS, M., & EBINGER, P. (1993). Progressive und regressive Hirngrößenveränderungen bei Equiden. Z zool Syst Evolut forsch, 31, 233–239.
|
|
|
|
Ryder O,. (1983). The quagga is gone but its genes may survive. Zoonooz San Diego Zoo, 16.
|
|
|
|
Rzasnicki A Py,. (). Complete list of the specimens of skeletons and skins of Equus quagga quagga preseved in the museum of the whole world in 1939. Ann Mus Zool Polonica, 14, 69–73.
|
|
|
|
Rzasnicki A,. (1951). Zebras and quaggas. Ann Mus Zool Polonica, 16, 203–252.
|
|
|
|
Schneider M,, & Schneider R,. (1966). ZUr Kenntnis der innerartlichen Ausformung des Schmelzmusters bei Equidenzähnen. Zool Anz, 176, 71–97.
|
|
|
|
Sclater,. (1901). Notice of a Zebra taken from Ludophus's work Abyssinia. Proc Zool Soc Lond, 2(1), 2.
|
|
|
|
Sidney J,. (1965). The past and present distribution of african ungulates. Transactions Zool Soc Lond, 30.
|
|
|
|
Skorkowski E,. (1955). Studies on the systematical position on species, belonging to the genus Equinus. Zool Poloniae, 6, 238–292.
|
|
