@article{DAN_1957_115_3_a9,
     author = {L. A. Sakhnovich},
     title = {Reduction of non-selfadjoined operators to the diagonal form},
     journal = {Doklady Akademii Nauk},
     pages = {462--465},
     publisher = {mathdoc},
     volume = {115},
     number = {3},
     year = {1957},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1957_115_3_a9/}
}