1. Society exergy analysis: a comparison of different societies;Ertesvåg;Energy,2001
2. Exergy analysis of the Norwegian society;Ertesvåg;Energy,2000
3. Sustainable utilizations of grassland resources in China (in Chinese);Jiang;Acta Agresia Sinica,1997
4. Rangeland Resources of China (in Chinese);Liao,1996
5. Reynolds, S.G., 2001. Sustainable development of grassland ecosystems: two case studies from China. Presented at the International Symposium on Sustainable Development of Grassland Ecosystems, 27–30 August, Xilinhot, Inner Mongolia, China.