%0 Journal Article %A A. L. Vol'berg %A V. V. Peller %A D. V. Yakubovich %T A~brief excursion into the theory of hyponormal operators %J Algebra i analiz %D 1990 %P 1-38 %V 2 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_1990_2_2_a0/ %G ru %F AA_1990_2_2_a0