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Theoretical principles of underworking of benches in controlled caving
B. N. Tartakovskii, A. G. Shapar', L. Kh. Ivanova, V. I. KosenkoVolume:
5
Language:
english
Pages:
4
DOI:
10.1007/bf02501904
Date:
March, 1969
File:
PDF, 245 KB
english, 1969