@article{DAN_1969_185_4_a3,
     author = {N. Ya. Krupnik and I. Ts. Gokhberg},
     title = {The spectrum of singular integral operators in $L_p$ spaces with weight},
     journal = {Doklady Akademii Nauk},
     pages = {745--748},
     publisher = {mathdoc},
     volume = {185},
     number = {4},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_185_4_a3/}
}