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Shashin D.E. 
Volga State University of Technology
Yoshkar-Ola, Republic of Mari El, Russian Federation
Shashin D.E. --- Post-Graduate Student, Department of Design and Production of Radio Equipment, Volga State University of Technology (ploshchad' Lenina 3, Yoshkar-Ola, Republic of Mari El, 424000 Russian Federation).
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