✦ LIBER ✦
Roof control is more than just protection at the mine face : Corwine, J W Coal Min Proc, V13, N11, Nov 1976, P48–52, 71
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 107 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0148-9062
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