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Determining the load-bearing capacity of pillars when working thin sheet-like slanting ore beds in a ledge-rock mass
A. V. Lovchikov, I. A. TurchaninovVolume:
5
Language:
english
Pages:
5
DOI:
10.1007/bf02501400
Date:
July, 1969
File:
PDF, 301 KB
english, 1969