검색결과 : 2건
| No. | Article |
|---|---|
| 1 |
In situ estimation of roof rock strength using sonic logging Oyler DC, Mark C, Molinda GM International Journal of Coal Geology, 83(4), 484, 2010 |
| 2 |
The Coal Mine Roof Rating (CMRR) - a decade of experience Mark C, Molinda GM International Journal of Coal Geology, 64(1-2), 85, 2005 |