1 - 25 of 1
| Title | Date | Type | ||
|---|---|---|---|---|
| 1 |
 |
Numerical investigation of pipe umbrella roof support systems in underground coal mining | 2012-08 | Text |
1 - 25 of 1
| Title | Date | Type | ||
|---|---|---|---|---|
| 1 |
|
Numerical investigation of pipe umbrella roof support systems in underground coal mining | 2012-08 | Text |