✦ LIBER ✦
Development and use of roadway supports for difficult geomechanical conditions in Polish coal mines (in German) : Raczynski, A Neue Bergbautech, V8, N8, Aug 1978, P452–456
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 105 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0148-9062
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