@article{IM2_1984_23_2_a0,
     author = {A. B. Antonevich and A. V. Lebedev},
     title = {On spectral properties of operators with a~shift},
     journal = {Izvestiya. Mathematics },
     pages = {201--224},
     publisher = {mathdoc},
     volume = {23},
     number = {2},
     year = {1984},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1984_23_2_a0/}
}