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S. V. Kuznetsov and S. A. Khristianovich, Symposium 59 [in Russian], Izd. VNIMI, Leningrad (1965).
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Additional information
Siberian Branch, All-Union Scientific-Research Mine Surveying Institute, Prokop’evsk. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 99–102, March–April, 1971.
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Fiks, I.I., Egorov, P.V. Assessment of the concentration of principal and maximal tangential stresses in the roof of a sema being worked. Soviet Mining Science 7, 212–215 (1971). https://doi.org/10.1007/BF02502825
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DOI: https://doi.org/10.1007/BF02502825