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@article{DAN_1984_277_5_a11, author = {A. I. Stepanets}, title = {Classes of periodic functions and the approximation of their}, journal = {Doklady Akademii Nauk}, pages = {1074--1077}, publisher = {mathdoc}, volume = {277}, number = {5}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1984_277_5_a11/} }
A. I. Stepanets. Classes of periodic functions and the approximation of their. Doklady Akademii Nauk, Tome 277 (1984) no. 5, pp. 1074-1077. http://geodesic.mathdoc.fr/item/DAN_1984_277_5_a11/