%0 Journal Article
%A V. V. Kapustin
%T Spectral analysis of almost unitary operators
%J Algebra i analiz
%D 2001
%P 44-68
%V 13
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AA_2001_13_5_a2/
%G ru
%F AA_2001_13_5_a2