✦ LIBER ✦
Study and choice of parameters for a system of mine working by horizontal layers in a descending order with a suspension support system and filling of the worked-out space
✍ Scribed by V. N. Kulakov; G. F. Ogorelkov; V. I. Cheremov
- Publisher
- Springer
- Year
- 1984
- Tongue
- English
- Weight
- 508 KB
- Volume
- 20
- Category
- Article
- ISSN
- 1573-8736
No coin nor oath required. For personal study only.