Estimation of roof stability in narrow openings and...

Estimation of roof stability in narrow openings and production workings. Classification of rocks in the Olkusz region (In Polish) : Takuski, S; Sepial, J Gornictwo, V1, N3, 1977, P247–255

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Volume:
16
Year:
1979
Language:
english
DOI:
10.1016/0148-9062(79)91595-x
File:
PDF, 122 KB
english, 1979
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