%0 Journal Article %A M. I. Ostrovskii %A V. A. Khatskevich %A V. S. Shulman %T Operator Quadratic Inequalities and Linear Fractional Relations %J Funkcionalʹnyj analiz i ego priloženiâ %D 2007 %P 83-87 %V 41 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_2007_41_4_a8/ %G ru %F FAA_2007_41_4_a8