@article{MZM_1989_46_5_a11,
     author = {G. Dzhangibekov},
     title = {Some two-dimensional singular integral operators},
     journal = {Matemati\v{c}eskie zametki},
     pages = {91--93},
     year = {1989},
     volume = {46},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1989_46_5_a11/}
}