%0 Journal Article
%A V. I. Liberzon
%A V. S. Shul'man
%T Operator-irreducible symmetric algebras of operators in the $\mathbf\Pi^1$ Pontryagin space
%J Izvestiya. Mathematics 
%D 1971
%P 1168-1179
%V 5
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1971_5_5_a10/
%G en
%F IM2_1971_5_5_a10