%0 Journal Article %A O. A. Ladyzhenskaya %T All-Union seminar ``Nonlinear Problems of Mathematical Physics'' %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1987 %V 42 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1987_42_6_a23/ %G ru %F RM_1987_42_6_a23