| Tougard, C.; Delefosse, T.; Hoenni, C.; Montgelard, C., 2001. Phylogenetic relationships of the five extant rhinoceros species (Rhinocerotidae, Perissodactyla) based on mitochondrial cyctochrome b and 12s rRNA genes. Molecular Phylogenetics and Evolution 19 (1): 34-44, figs. 1-3, tables 1-5
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