共 50 条
- [41] PLATE-LOAD TESTING AS A METHOD OF ASSESSING INSITU STRENGTH PROPERTIES OF WESTERN CANADIAN COAL INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, 1975, 12 (10): : 303 - 310
- [50] COAL AND COAL DEVELOPMENTS IN WESTERN KENTUCKY AAPG BULLETIN-AMERICAN ASSOCIATION OF PETROLEUM GEOLOGISTS, 1980, 64 (08): : 1290 - 1290