@article{DAN_1977_236_2_a2,
     author = {Arif S. Dzhafarov},
     title = {Averaged moduli of continuity and some of their connections with best approximations},
     journal = {Doklady Akademii Nauk},
     pages = {288--291},
     publisher = {mathdoc},
     volume = {236},
     number = {2},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1977_236_2_a2/}
}