Research Article
Elena I. Cherdymova, Alfiya R. Masalimova, Elmira R. Khairullina, Dinara G. Vasbieva, Nupaisat P. Ismailova, Rashad A. Kurbanov, Andrey A. Tyazhelnikov
EURASIA J Math Sci Tech Ed, Volume 16, Issue 11, Article No: em1892
https://doi.org/10.29333/ejmste/8531