@article{IVM_1984_5_a6,
     author = {G. A. Mamedov},
     title = {The order of approximation of a~two-dimensional singular integral},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {39--42},
     year = {1984},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1984_5_a6/}
}