TY - JOURNAL OF NATURAL RESOURCES A1 - Wang Bennan T1 - THE DISTANCE METHODS FOR INVESTIGATION OF RESOURCES Y1 - 1987-06-25 00:00:00.0 JF - JOURNAL OF NATURAL RESOURCES JO - JOURNAL OF NATURAL RESOURCES SP - 184 EP - 192 VL - 2 IS - 2 UR - {https://www.jnr.ac.cn/EN/10.11849/zrzyxb.1987.02.010} N1 - 10.11849/zrzyxb.1987.02.010 ER -