✦ LIBER ✦
Enlargement and sinking of the Lummerschied shaft using a shaft boring machine with subsequent concrete lining (in French) : Mines Carrieres (Les Techniques) V73, May 1991, P38–48
✍ Scribed by H. Haas; E. Schneider
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 108 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0148-9062
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