Ufa Lozhkina Darya D. Bashkir State University, Russia, 450076, The Republic of Bashkortostan, Ufa, Validy street, 32 salieri09@gmail.com Read more about Lozhkina Darya D. PopovaLyubov A. Bashkir State University, Russia, 450076, The Republic of Bashkortostan, Ufa, Validy street, 32 lyakimovich@yandex.ru Read more about Popova Lyubov A. NikulinaAllaK. Bashkir State Pedagogical University named after M. Akmulla, 3а, October revolution Str., Ufa, 450008, Republic of Bashkortostan, Russia alla_nikoulina@mail.ru Read more about Alla K. Nikulina TitlovaAnastasiaStanislavovna Bashkir State University, Russia, 450076, The Republic of Bashkortostan, Ufa, Validy street, 32 nastyatitl@gmail.com Read more about Titlova Anastasia Stanislavovna GrigoryevaTatianaVladimirovna Bashkir State University, Russia, 450076, The Republic of Bashkortostan, Ufa, Validy street, 32 tagrig8@mail.ru Read more about Grigoryeva Tatiana Vladimirovna RodionovaSvelanaEvgenyevna Bashkir State University, Russia, 450076, The Republic of Bashkortostan, Ufa, Validy street, 32 rse14@mail.ru Read more about Rodionova Svelana Evgenyevna AstashkinAntonGrigoryevich Bashkir State University, Russia, 450076, The Republic of Bashkortostan, Ufa, Validy street, 32 for-materials@yandex.ru Read more about Astashkin Anton Grigoryevich