%0 Journal Article
%A A. L. Vol'berg
%T J.~William Helton. ``Operator Theory, Analytic Functions, Matrices, and Electrical Engineering''. CBMS Regional Conf. Series in Math.~N~68. American Math. Society, 1987. 134~p.;

%J Algebra i analiz
%D 1991
%P 216-222
%V 3
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AA_1991_3_3_a11/
%G ru
%F AA_1991_3_3_a11