✦ LIBER ✦
Effectiveness of working coal in a tectonically disturbed thin seam, taking as an example the ancient Karol Mine (in Polish) : Drewniak, R; Malek, J Przegl GornV39, N10, Oct 1983, P392–398
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 106 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0148-9062
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