@article{DAN_1963_148_3_a9,
     author = {R. G. Mamedov},
     title = {On certain classes of functions},
     journal = {Doklady Akademii Nauk},
     pages = {520--522},
     publisher = {mathdoc},
     volume = {148},
     number = {3},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_148_3_a9/}
}