1. Conservation Department for the Wild Animals and Forest Plants of the Forestry Ministry, 1994. A Guide to Conservation and Rational Utilization of Wetland. Beijing: China Forest Press. 188–197. (in Chinese)
2. Liu Xingtu, 1995. Wetland protection and rational utilization in Sanjiang Plain. A Study on Wetland in China. Changchun: Jilin Science and Technology Press. 108–117.
3. Liu Jiyuan, 1996. Remote Sensing Investigation and Dynamic Study on Resources Environment in China. Beijing: China Science and Technology Press. 124–130. (in Chinese)
4. The United Committee of Conserving Wild Animals in Northeast, 1988. The Northeast Birds. Shenyang: Liaoning Science and Technology Press. (in Chinese)