New evidence of human activities at an altitude of 4000 meters area of Qinghai-Tibet Plateau
Guangliang HOU, Guangchao CAO, Chongyi E, Xiaoyan REN, B Wuennemann, Fan LI
Acta Geographica Sinica . 2016, (7): 1231 -1240 .  DOI: 10.11821/dlxb201607011