共 50 条
- [42] GUIDE TO GEOLOGIC FEATURES AFFECTING COAL MINE ROOF. South African Mining and Engineering Journal, 1982, 91 (11): : 34 - 35
- [43] GEOLOGIC STRUCTURES THAT AFFECT COAL-MINE ROOF STABILITY AAPG BULLETIN-AMERICAN ASSOCIATION OF PETROLEUM GEOLOGISTS, 1991, 75 (08): : 1381 - 1381
- [44] USE OF GEOLOGICAL INFORMATION TO DESCRIBE COAL MINE ROOF CONDITIONS ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1973, (AUG26): : 16 - 16