✦ LIBER ✦
Drivage of gateways along the goaf in a coal seam liable to coal and gas outburst (in Chinese) : Zhang Qingnan; Fu Zongyuan Coal Sci Technol, N2, 1981, P2–4
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 107 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0148-9062
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