%0 Journal Article
%A L. A. Sakhnovich
%T Nonunitary operators with absolutely continuous spectrum on the unit cycle
%J Doklady Akademii Nauk
%D 1968
%P 558-561
%V 181
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1968_181_3_a12/
%G ru
%F DAN_1968_181_3_a12