1. Discussess on climate changes in Zedang during recent 40 years;Chen Kedong;Meteorological Monthly,2000
2. The Basic Method of Grey System;Deng,1987
3. Observed climate variations and change;Folland,1990
4. Liu, D. 1990, The possible impact of the increase of CO2 in the air on the climate and environment, China Arid and Semi-arid Area Climate, Environment and Regional Development Research, Beijing, Meteorology Press, 5, 12
5. A Collection of Papers on the Strategic Planning and Systematic Engineering Studies of the Integrated Economic, Social and Ecological development in Yuanmou County;Liu,1989