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Additional information
Eastern Scientific-Research Institute, Kemerovo. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 4, pp. 23–28, July–August, 1984.
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Nikiforov, V.A. Study of the deformation process in hole walls while introducing a drilling instrument into the near-stope portion of a coal seam. Soviet Mining Science 20, 261–265 (1984). https://doi.org/10.1007/BF02497041
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DOI: https://doi.org/10.1007/BF02497041