%0 Journal Article %A J. Brilla %A A. Kufner %A V. N. Maslennikova %T Tenth Czechoslovak-Soviet Meeting on Applications of Methods of Functional Analysis and Function Theory for Problems of Mathematical Physics %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1989 %V 44 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1989_44_4_a17/ %G ru %F RM_1989_44_4_a17