Schemes for development of gently dipping seams, not...

Schemes for development of gently dipping seams, not requiring disassembly of hydraulic systems

P. M. Kovachevich, V. P. Ptitsin, F. K. Prusakov, G. I. Yakimov
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Volume:
10
Language:
english
Pages:
3
DOI:
10.1007/bf02501449
Date:
July, 1974
File:
PDF, 183 KB
english, 1974
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