@article{DAN_1973_211_6_a12,
     author = {G. M. Magomedov},
     title = {On the boundedness of singular integral operators},
     journal = {Doklady Akademii Nauk},
     pages = {1296--1298},
     publisher = {mathdoc},
     volume = {211},
     number = {6},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_211_6_a12/}
}