@article{MZM_1991_50_5_a3,
     author = {G. M. Vartanyan},
     title = {Rate of approximation of functions in the {Hardy{\textendash}Orlicz} classes $H_{\varphi}$},
     journal = {Matemati\v{c}eskie zametki},
     pages = {23--31},
     year = {1991},
     volume = {50},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1991_50_5_a3/}
}