Robinson, T.J.; Trifonov, V.; Espie, I.; Harley, E.H. 2005. Interspecific hybridisation in rhinoceroses: confirmation of a black x white rhinoceros hybrid by karyotype, fluorescence in sity hybridisation (FISH) and microsatellite analysis. Conservation Genetics 6: 141-145, figs. 1-2, table 1.