✦ LIBER ✦
Development of a new flexible road support consisting of steel tubes with concrete filling (in German) : Draganow, L Neue Bergbautech, V7, N3, March 1977, P182–185
- Publisher
- Elsevier Science
- Year
- 1977
- Tongue
- English
- Weight
- 132 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0148-9062
No coin nor oath required. For personal study only.