EN中文
Integrated Demarcation and Building Measures on Ecological Environment in Northwest China
LIU Yin-han, GUAN Hai yan, LI Hou di, WANG Yong, LIU Xiao jing
PROGRESS IN GEOGRAPHY . 2002, (5): 403 -409 .  DOI: 10.11820/dlkxjz.2002.05.001