%0 Journal Article %A Le Kuang Chung %T On~a non-coercive problem for singular integro-differential equations %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1989 %P 206-207 %V 44 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1989_44_5_a14/ %G en %F RM_1989_44_5_a14