@article{DE_1980_16_1_a15,
     author = {A. P. Soldatov},
     title = {Singular integral operators on the line},
     journal = {Differencialʹnye uravneni\^a},
     pages = {135--144},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1980_16_1_a15/}
}