TY - Sciences in Cold and Arid Regions A1 - T1 - Guest Editors Fujun Niu and Jiankun Liu for special Issue International Conference on Permafrost Y1 - 2021-04-30 JF - Sciences in Cold and Arid Regions JO - Sciences in Cold and Arid Regions SP - 1 EP - 1 VL - 13 IS - 2 UR - http://www.scar.ac.cn N1 - ER -