%0 Journal Article %A L. A. Sakhnovich %T Reduction of non-selfadjoined operators to the diagonal form %J Doklady Akademii Nauk %D 1957 %P 462-465 %V 115 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_115_3_a9/ %G ru %F DAN_1957_115_3_a9