✦ LIBER ✦
Why sudden outbursts of coal and gas occur (in Russian) : Krivoruchko, A M; Krivoruchko, N F Ugol Ukr, V20, N5, May 1976, P34–37
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 94 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0148-9062
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