1. Jiang, X-L., Wang, Y-X., and Hoffmann, R.S., Mammalian Biology, 2003, vol. 68, pp. 193–204.
2. Hutterer, R., in Mammal Species of the World: A Taxonomic and Geographic Reference, Wilson, D.E. and Reeder, D.M., eds., Baltimore, MD: Johns Hopkins Univ. Press, 2005, 3rd edition, pp. 212–311.
3. Milne Edwards, A., in: Recherches pour servir a l’histoire naturelle des mammiferes, Milne Edwards, H., ed., Paris: Libraire de l’Academie de Medecine, 1872, pp. 231–304.
4. Thomas, O., in Proceedings of Zoological Society, London, 1911, pp. 158–180.
5. Allen, G.M., The Mammals of China and Mongolia, New York: American Museum of Natural History, 1938, part 1.