✦ LIBER ✦
Approximate calculation of the risk of bed separation in coal seam roofs : Kuznetsov, S T; Amusin, B Z; Pekarskii, D G Sov Min Sci, V12, N4, July–Aug 1976, P359–364
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 105 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0148-9062
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