Features of Permafrost Degradation in Hinggan Mountains, Northeastern China
JIN Hui-jun, WANG Shao-ling, LU Lan-zhi, YU Shao-peng
SCIENTIA GEOGRAPHICA SINICA . 2009, (2): 223 -228 .  DOI: 10.13249/j.cnki.sgs.2009.02.223