The stress-strain state of coal pillars under support canopies
L. P. Tomashevskii, L. A. Shcherbakov, M. V. Shepelev, N. N. Demin, B. A. Apen'kinVolume:
9
Language:
english
Pages:
5
DOI:
10.1007/bf02506193
Date:
March, 1973
File:
PDF, 410 KB
english, 1973