@article{DAN_1983_269_6_a4,
     author = {S. M. Grudskii and A. B. Khevelev},
     title = {On invertibility in $L_2(R)$ of singular integral operators with periodic coefficients and a shift},
     journal = {Doklady Akademii Nauk},
     pages = {1303--1306},
     publisher = {mathdoc},
     volume = {269},
     number = {6},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1983_269_6_a4/}
}