✦ LIBER ✦
Control of main roof caving by surface borehole charges in pits in the permafrost
✍ Scribed by A. E. Sleptsov
- Publisher
- Springer
- Year
- 1979
- Tongue
- English
- Weight
- 313 KB
- Volume
- 15
- Category
- Article
- ISSN
- 1573-8736
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