@article{MZM_2023_113_3_a15,
     author = {N. V. Laktionova and K. V. Runovskii},
     title = {Direct {Theorems} on {Approximation} of {Periodic} {Functions} with {High} {Generalized} {Smoothness}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {477--480},
     publisher = {mathdoc},
     volume = {113},
     number = {3},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2023_113_3_a15/}
}