Permafrost Features and Their Changes in Amur Area, Da Hinggan Ling Prefecture
顾钟炜, 周幼吾, 梁凤仙, 梁林恒, 张齐兵
JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY . 1993, (1): 34 -40 .  DOI: 10.7522/j.issn.1000-0240.1993.0005