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Piskunov M.A. 
Petrozavodsk State University
Petrozavodsk, Republic of Karelia, Russian Federation
Piskunov M.A. --- Cand. Sc. (Eng.), Assoc. Professor, Department of General Technical Subjects, Institute of Forestry, Mining and Construction Sciences, Petrozavodsk State University (Lenin prospekt 33, Petrozavodsk, Republic of Karelia, 185910 Russian Federation).
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