Variation of the runoff in the upper and middle reaches of the main Heihe River and its causes
CHENG Jianzhong, LU Zhixiang, ZOU Songbing, CHENG Wenjia
JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY . 2017, (1): 123 -129 .  DOI: 10.7522/j.issn.1000-0240.2017.0015