TY - Sciences in Cold and Arid Regions A1 - Won-Taek Hong, Jong-Sub Lee T1 - Application of a nondestructive method to evaluate the active layer in a cold region Y1 - 2017-06-01 JF - Sciences in Cold and Arid Regions JO - Sciences in Cold and Arid Regions SP - 213 EP - 220 VL - 9 IS - 3 UR - http://www.scar.ac.cn N1 - 10.3724/SP.J.1226.2017.00213 ER -