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D. N. Malikov, Izv. TPI,88, Metallurgizdat, Sverdlovsk (1959).
L. A. Saruev, Investigation of Some Factors Governing the Construction and Productivity of Rigs for Rotary-Percussive Drilling of a Fan of Boreholes of Small Diameter [in Russian], author's abstract of dissertation, Tomsk (1968).
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Additional information
S. M. Kirov Tomsk Polytechnic Institute. Translated from Fiziko-Tekhnickeskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 3, pp. 127–129, May–June, 1971.
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Gorbunov, V.F., Saruev, L.A., Kashkarov, G.M. et al. Analysis of the productivity of rigs for drilling a fan of underground boreholes. Soviet Mining Science 7, 377–379 (1971). https://doi.org/10.1007/BF02501647
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DOI: https://doi.org/10.1007/BF02501647