Driving and ventilating shallow development workings in...

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. Pisarev
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Volume:
28
Language:
english
Pages:
3
DOI:
10.1007/bf00711132
Date:
September, 1992
File:
PDF, 235 KB
english, 1992
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