Naberezhnye Chelny ZadvornovA.N. Kazan Federal University, St. Kremlevskaya, 35, Kazan, 420008, Russia egpi-PF@yandex.ru Read more about A. N. Zadvornov Kaguy N. V. Naberezhnye Chelny Institute of Social and Pedagogical Resources and Technologies, Tatarstan 28, Nizametdinov, Naberezhnye Chelny, 423806 kagui-natasha@mail.ru Read more about N. V. Kaguy
