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Assessment of the air permeability of the rock between openings during mining of contiguous seams
V. A. Bonetskii, V. D. Bogatyrev, A. S. Bogatyreva, V. P. SadokhinVolume:
12
Language:
english
Pages:
3
DOI:
10.1007/bf02497730
Date:
March, 1976
File:
PDF, 190 KB
english, 1976