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On the effect of support resistance on displacement of roof rock in the face zone

✍ Scribed by E. A. Bober; N. A. Fedorov; V. N. Smirnov; M. S. Vaganov; O. S. Kurzantsev


Publisher
Springer
Year
1968
Tongue
English
Weight
274 KB
Volume
4
Category
Article
ISSN
1573-8736

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