%0 Journal Article %A E. V. Voskresenskii %A V. F. Tishkin %T II International Conference ``Differential Equations and Their Applications'' %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1997 %V 52 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1997_52_3_a16/ %G ru %F RM_1997_52_3_a16