Sun Gang; Jin Kun; Wang Zhentang 1998. A spatio-temporal model of rhinoceros extinction in China. Journal of Forestry Research 9 (2): 129-130, figs. 1-2.
Wang Zhentang; Xu Feng; Sun Gang 1997. A preliminary analysis of the relationship between the extinction of rhinoceros and human population pressure in China. Acta Ecologica Sinica 17 (6).
Wang Zhentang; Zhao Wenjie; Sun Gang 1993. The eco-environmental model of Rhinoceros extinction in China. Polish Ecological Studies 19 (1/2): 29-34, figs. 1-3.






