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Mitigating destructive longwall bumps through conventional gate entry design /
I tiakina i:
| Ētahi atu kaituhi: | |
|---|---|
| Hōputu: | Tē mōhiotia |
| Reo: | Ingarihi |
| I whakaputaina: |
Pgh. [i.e. Pittsburgh] PA :
United States Dept. of the Interior, Bureau of Mines,
1990.
|
| Rangatū: | Report of investigations (United States. Bureau of Mines) ;
9325. |
| Ngā marau: | |
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