✦ LIBER ✦
Technology improvements aid room-and-pillar coal mining : C. J. Bise, Mining Engineering, 47(12), 1995, pp 1107–1110
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 126 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0148-9062
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