Penza LazarevaLanaViktorovna Penza State University, St. Krasnaya, 40, Penza, 440026, Russia lana.lazareva@mail.ru Read more about Lazareva Lana Viktorovna StruninaNatalyaV. Penza State University, St. Krasnaya, 40, Penza, 440026, Russia natstrunina@mail.ru Read more about Strunina Natalya V. MartynovaOlgaAlexandrovna Penza State University, St. Krasnaya, 40, Penza, 440026, Russia martoa@mail.ru Read more about Martynova Olga Alexandrovna PlotkinaLilyaN. Penza State University, St. Krasnaya, 40, Penza, 440026, Russia lin68@bk.ru Read more about Plotkina Lilya N. KonstantinovVsevolodV. Penza State University, St. Krasnaya, 40, Penza, 440026, Russia legem1@yandex.ru Read more about Konstantinov Vsevolod V. KirillovGermanMikhailovich Penza State University, St. Krasnaya, 40, Penza, 440026, Russia gekir10@mail.ru Read more about Kirillov German Mikhailovich
