Изменение механической прочности угольного пласта в массиве
| Main Author: | |
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| Corporate Author: | |
| Format: | Book |
| Language: | Undetermined |
| Published: |
М
Наука
1982
|
| Main Author: | |
|---|---|
| Corporate Author: | |
| Format: | Book |
| Language: | Undetermined |
| Published: |
М
Наука
1982
|