Literature Cited
I. F. Medvedev and A. I. Pulyaev, Rotary-Percussive Drilling of Blastholes and Boreholes [in Russian], Moscow, Gosgortekhizdat (1962).
Mining Engng., No. 11 (1963).
Additional information
Moscow. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 1, pp. 77–80, January–February. 1967.
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Medvedev, I.F., Pulyaev, A.I. & Buzhin, A.P. Optimum force characteristics of rotary-percussive machines for drilling blast holes. Soviet Mining Science 3, 58–60 (1967). https://doi.org/10.1007/BF02497070
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DOI: https://doi.org/10.1007/BF02497070