DIVISION OF PERMAFROST REGIONS IN DAXIAO HINGGAN LING NORTHEAST CHINA
Guo Dongxin, Wang Shading, Lu Guouwei, Dan Jingbe, Li Enying
JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY . 1981, (3): 1 -9 .  DOI: 10.7522/j.issn.1000-0240.1981.0039