@article{VVGUM_2021_24_1_a0,
     author = {Yu. Kh. Khasanov and Y. F. Kasimova},
     title = {On the relationship of a convolution type transformation and the best approximation of periodic functions},
     journal = {Matemati\v{c}eska\^a fizika i kompʹ\^uternoe modelirovanie},
     pages = {5--15},
     publisher = {mathdoc},
     volume = {24},
     number = {1},
     year = {2021},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VVGUM_2021_24_1_a0/}
}