%0 Journal Article
%A I. Ts. Gokhberg
%A M. G. Krein
%T Description of contraction operators which are similar to unitary operators
%J Funkcionalʹnyj analiz i ego priloženiâ
%D 1967
%P 38-60
%V 1
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/FAA_1967_1_1_a3/
%G ru
%F FAA_1967_1_1_a3