Naumov Alexey Ivanovich NaumovAlexey IvanovichCountry: RussiaCity: SaratovCompany: Saratov State Technical University named after Gagarin Yu. A.77, Politechnicheskaya str., Saratov, 410054, Russia E-mail: Naumov_A.1991@mail.ru Author's articles Issues of the Vocational Education on Railway Transport
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