%0 Journal Article %A V. A. Korobitsyn %T Transformations of difference operators %J Doklady Akademii Nauk %D 1980 %P 284-287 %V 253 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1980_253_2_a7/ %G ru %F DAN_1980_253_2_a7