1 - 25 of 2
| Title | Date | Type | ||
|---|---|---|---|---|
| 1 |
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Time studies in underground coal mining | 1958-12 | Text |
| 2 |
 |
Two dimensional stability evaluation of a single entry longwall mining system | 1974-06 | Text |
1 - 25 of 2
| Title | Date | Type | ||
|---|---|---|---|---|
| 1 |
|
Time studies in underground coal mining | 1958-12 | Text |
| 2 |
|
Two dimensional stability evaluation of a single entry longwall mining system | 1974-06 | Text |