Characteristics of δ 18O in Precipitation over Northwest China and Its Water Vapor Sources
LIU Jianrong,SONG Xianfang,YUAN Guofu,SUN Xiaomin,LIU Xin,CHEN Feng,WANG Zhimin,WANG Shiqin
Acta Geographica Sinica . 2008, (1): 12 -22 .  DOI: 10.11821/xb200801002