Kazan Warning message Node revision 2036 not found. Perharps it was deleted. ZakirovAidarR. Kazan (Privolzhsky) Federal University, 18 Kremlevskaya St., Kazan, 420000azr12353@gmail.com Read more about Zakirov Aidar R. TokarevаО.V. Kazan National Research Technological University, Street. Karl Marx, 68, Kazan, Republic of Tatarstan, 420015olgato@mail.ru Read more about Tokarevа О. V. ZaripovaА.R. Kazan (Privolzhsky) Federal University, 18 Kremlevskaya St., Kazan, 420000zaripovaaigul92@mail.ru Read more about Zaripova А. R. ZaznaevOlegI. Kazan (Privolzhsky) Federal University, 18 Kremlevskaya St., Kazan, 420000political.science@mail.ru Read more about Zaznaev Oleg I.