@article{CHEB_2020_21_4_a18,
     author = {O. G. Rovenska and O. A. Novikov},
     title = {On approximation of classes of analytic periodic functions by {Fejer} means},
     journal = {\v{C}eby\v{s}evskij sbornik},
     pages = {218--226},
     publisher = {mathdoc},
     volume = {21},
     number = {4},
     year = {2020},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CHEB_2020_21_4_a18/}
}