@article{DE_1979_15_2_a11,
     author = {V. S. Serov},
     title = {Absolute convergence of spectral expansions in generalized {Besov} classes},
     journal = {Differencialʹnye uravneni\^a},
     pages = {293--302},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1979_15_2_a11/}
}