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Hydraulic method for working of a thick steep seam with closed underground water dehydration and clarification cycle
V. V. Lukashchuk, V. I. Shablovskii, G. I. KulakovVolume:
29
Language:
english
Pages:
3
DOI:
10.1007/bf00710787
Date:
July, 1993
File:
PDF, 236 KB
english, 1993