✦ LIBER ✦
Direction analysis of borehole ovalities and wall overbreaks in exploration drilling in the Ruhr coalfield (in German) : Hees, K D; Huwe, H W; Murbach, U Gluckauf-forschungshV52, N1, Feb 1991, P28–36
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 138 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0148-9062
No coin nor oath required. For personal study only.