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Main Authors Ryavkin G.N.
Ryavkin G.N.

South Ural State University (National Research University)

Chelyabinsk, Russian Federation

Ryavkin G.N.

Ryavkin G.N. --- Research Engineer, Department of Scientific and Innovation Activities, South Ural State University (National Research University) (Lenina prospekt 76, Chelyabinsk, 454080 Russian Federation).

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