| 000 | 00323pam a2200109a 44500 | ||
|---|---|---|---|
| 082 |
_aTR _bRI-9219mmmmm |
||
| 100 | _aC.E. Brechtel | ||
| 245 | 1 | _aComputer simulation of face ventilation to dilute high methane concentrations developed by blasting oil shale | |
| 260 |
_a _b _c |
||
| 700 | _aE.D. Thimons | ||
| 997 | _aTR6594 C | ||
| 999 |
_c405760 _d405760 |
||