✦ LIBER ✦
Coal pillar strength study (the design of production pillars in coal mines) : Pariseau, W G; Hustrulid, W A; Swanson, S R USBM OFR 166-77, July 1977, 442P
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 216 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0148-9062
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