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Prediction of roof stability in coal mine workings : Kuzniecov, ST VNIMI, Moscow, USSR In Polish. 4F, 7R. Przegl. Gorn. V30, N1, Jan. 1974. P35–38


Publisher
Elsevier Science
Year
1974
Tongue
English
Weight
122 KB
Volume
11
Category
Article
ISSN
0148-9062

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