1. Wilson D. E. & Mittermeier R. A.: Handbook of the mammals of the world - vol. 2, Hoofed mammals Creator: Suchomel, Josef, Hrabina, Petr, Lupták, Peter, and Robovský, Jan Type: article, model:article, and TEXT Language: English Rights: http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public