1. Deng ZF, Zhou XM (2001) Reproductive strategies of major plant populations in Kobersia meadow. In: Zhou XM (ed) Chinese kobersia meadow. China Science Press, Beijing, pp 95–130
2. Hammermeister AM (2001) An ecological analysis of prairie rehabilitation on petroleum well-sites in southeast Alberta. PhD Thesis, University of Alberta. ProQuest Information and Learning (UMI), Ann Arbor
3. Li WH, Zhou XM (1998) Ecosystems of Tibetan Plateau and approach for their sustainable management. Guangdong Science and Technology Press, Guangdong
4. Li YF, Lai DZh, Zhou MX (1999) Rat and insect controls in grassland of Guoluo prefecture. Chin Qinghai J Anim Vet Sci 29(4):16–17
5. Liu W, Wang QJ, Zhou L (1999) Ecological process of forming “Black-Soil-type” degraded grassland. Acta Agrestia Sin 7(4):300–307