@article{DAN_1984_276_3_a12,
     author = {M. A. Shubin},
     title = {Pseudodifference operators and their inversion},
     journal = {Doklady Akademii Nauk},
     pages = {567--570},
     publisher = {mathdoc},
     volume = {276},
     number = {3},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_276_3_a12/}
}