Author | Title | Subject | Date | Publication Type | ||
---|---|---|---|---|---|---|
1 | Koch, Ludwig W. | Time studies in underground coal mining | Coal mines and mining, Utah | 1958-12 | thesis | |
2 | Rao, Thummala Venkat | Two dimensional stability evaluation of a single entry longwall mining system | Mine safety; Sunnyside Coal Mine, Sunnyside, Utah; Coal mines and mining, Utah | 1974-06 | thesis |