Ufa GayfullinA.Yu. Ufa University of Science and Technology, 32 Zaki Validy St., Ufa 450076, Russiagayfullin_a@mail.ru Read more about Gayfullin A. Yu. CherkasovaTatyana V. Ufa State Petroleum Technological University, Kosmonavtov St., Ufa 450062, RussiaTVCherkasova@mail.ru Read more about Cherkasova Tatyana V. BosovaElenaNikolaevna Eastern Economics and Law Academy of Humanities (VEGU Academy), 3 Mubaryakova Str., Ufa 450092, Russiabosova_elena@mail.ru Read more about Bosova Elena Nikolaevna