Literature Cited
N. I. Yakovlev, A. K. Kovrizhin, and P. N. Kurtukov, Gornye Mashiny i Avtomatika, No. 1 (1969).
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Additional information
Kuzbass Scientiffic-Research Coal Institute (KuzNIUI), Kemerovo. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 1, pp. 18–21, January–February, 1972.
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Orishchin, A.D., Yakovlev, N.I., Kovrizhin, A.K. et al. Interaction of the AK extraction unit with the surrounding rocks during commercial trials in a steep seam. Soviet Mining Science 8, 16–18 (1972). https://doi.org/10.1007/BF02497801
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DOI: https://doi.org/10.1007/BF02497801