METHOD OF DRIVING A MINE WORKING
SHCHASHCHANOV BALIJ O,SU, ARYKBAEV MELIS S,SU, LI KLIM D,SU, KHALMANOV KHABIL ZH,SU, SHARIPOV NIL KH,SU, ATYGAEV DASTAN K,SU
Year of Publication 23.10.1986
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Year of Publication 23.10.1986
Patent