A Record of Drought and Flood Series by Tree-Ring Data in the Middle Section of Qilian Mountain Since 904 A.D.
KANG Xing-cheng, CHENG Guo-dong, CHEN Fa-hu, GOU Xiao-hua
JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY . 2003, (5): 518 -525 .  DOI: 10.7522/j.issn.1000-0240.2003.0093