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Driving and ventilating shallow development workings in thick seam mining
A. M. Goryunov, V. I. Klopov, G. I. Kulakov, A. N. Naumov, V. M. Makridin, V. P. PisarevVolume:
28
Language:
english
Pages:
3
DOI:
10.1007/bf00711132
Date:
September, 1992
File:
PDF, 235 KB
english, 1992