Literature Cited
A. D. Kostylev and E. N. Cherednikov, “Estimating the speed of formation of boreholes by a pneumatic boring tool in the soil according to the indications of the DorNII punch,” in: Pneumohydraulic Force Pulse Systems [in Russian], Pt. II, Novosibirsk (1969).
A. D. Kostylev and N. P. Chepurnoi, “Investigation of the precision of cutting boreholes with pneumatic boring tools with cylindrical casings of various lengths,” in: Pneumohydraulic Force Pulse Systems [in Russian], Pt. II, Novosibirsk (1969).
N. G. Smirnova, “Soviet Pneumatic Boring Tools Abroad,” Vneshnyaya Torgovlya, No. 10 (1969).
Additional information
Institute of Mining, Siberian Branch, Academy of Sciences of the USSR, Novosibirsk. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 44–49, March–April, 1970.
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Sudnishnikov, B.V., Kostylev, A.D. & Tupitsyn, K.K. Pneumatic boring tools in constructional engineering and mining. Soviet Mining Science 6, 165–168 (1970). https://doi.org/10.1007/BF02502153
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DOI: https://doi.org/10.1007/BF02502153