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Environmental division of township enterprise management in China. J. Environmental Management, 63 (2): 203-2 10. (SCI) PDF
Liu Dingzhen, Ma Yiqing, Du 2002 National Natural Science Foundation supported zoological research. Journal of Zoology 22 (1): 6 1-70.
Liu Dingzhen, Sun Ruyong, Zhang Guiquan, Wei Rongping, Zhang Hemin, 2002 Effects of Gender and Age on Giant Panda Behavior. Journal of Zoology, Vol.48, No.5: 585-590. PDF。
Liu Dingzhen, Yu Changqing, Zhang Guiquan, Wei Rongping, 2003 Behavior of giant pandas in captivity: gender differences and fence effect. Zoo Biology 22( 1):77-82 (SCI)
Ma Jie, Liu Dingzhen, Li Qingfen, Sun Ruyong 2003 Rodent Community Composition and Reproductive Characteristics of Dominant Species China Penaeus orientalis Forest in Dongling Mountain. Acta Zoologica 49 (2): 262-265. PDF (correspondent)
Ma Jie, Li Qingfen, Sun Ruyong, Liu Dingzhen 2004 Zoological Study on the Rodent Spread of Quercus liaotungensis Surface Seed in Xiaolongmen Forest Farm of Beijing 25 (4): 287-29 1.pdf.
Tian Hong, Wei Rongping, Zhang Guiquan, Sun Ruyong, Liu Dingzhen 2004 Behavioral differences of sub-adult giant pandas in traditional captivity and semi-natural release environment. Zoological research 25 (2):137-140.pdf.
, Ding, Sun, Rong, Gui, Ru. Anal gland secretion encoding sex and age of giant panda. Zoology Canada J 82 (10):1596-1604. (SCI) PDF