1. Cao, J., et al. (2005). Runoff changes in out-to-sea riverbasin in Tibetan Plateau. Chinese Science Bulletin, 50(21), 2403–2408.
2. Cao, L., et al. (2008). Climate change and its impact on water resources in North Xinjiang. Water Resources Protection, 24(6), 28–35.
3. Cao, L., et al. (2009). Climate change and its relationship with water resources in Xinjiang Uygur Autonomous Region from 1951 to 2006. Journal of Hohai University (Natural Sciences), 37(3), 281–283.
4. Chen, Y., et al. (2005). Spatial and temporal variation of precipitation over ten major basins in China between 1956 and 2000. Journal of Natural Resources, 20(5), 637–643.
5. Chen, H., et al. (2006). Temporal and spatial trend in the precipitation and temperature from 1951 to 2003 in the Hanjiang Baisn. Resources and environment in the Yangtze Basin, 15(3), 340–345.