%0 Journal Article %A A. I. Loginov %A V. S. Shulman %T Irreducible $J$-symmetric algebras of operators in spaces with an indefinite metric %J Doklady Akademii Nauk %D 1978 %P 21-23 %V 240 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1978_240_1_a3/ %G ru %F DAN_1978_240_1_a3