@article{DAN_1993_330_4_a3,
     author = {G. Dzhangibekov},
     title = {On a class of two-dimensional singular integral operators and its},
     journal = {Doklady Akademii Nauk},
     pages = {415--419},
     publisher = {mathdoc},
     volume = {330},
     number = {4},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_330_4_a3/}
}