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Laboratory investigations of rock pressure manifestations during extraction of a thick level seam in the karaganda coalfield by KM-120 powered aggregates with self-advancing hydraulically operated supports
L. N. Gapanovich, A. M. Kozina, E. P. Rutkovskaya, I. Kh. GogiyaVolume:
6
Language:
english
Pages:
5
DOI:
10.1007/bf02508881
Date:
July, 1970
File:
PDF, 368 KB
english, 1970