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Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 28–33, July–August, 1970.
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Gapanovich, L.N., Kozina, A.M., Rutkovskaya, E.P. et al. Laboratory investigations of rock pressure manifestations during extraction of a thick level seam in the karaganda coalfield by KM-120 powered aggregates with self-advancing hydraulically operated supports. Soviet Mining Science 6, 384–388 (1970). https://doi.org/10.1007/BF02508881
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DOI: https://doi.org/10.1007/BF02508881