Saratov
GvozdevGerman A. Saratov State Polytechnical University named after Gagarin Yu. A., 410054, Saratov, Polytechnical str., 77ger7709@yandex.ru
KlimovaMariaM.Saratov State University , 83, Astrakhanskaya str., Saratov, 410012, Russia mari-1997@mail.ru
ParhomenkoAlenaSergeevnaSaratov State University , 83, Astrakhanskaya str., Saratov, 410012, Russia grebenuk2@yandex.ru
Pages