%0 Journal Article %A A. P. Suetov %T A problem of Lions for systems describable by a problem of Neumann %J Differencialʹnye uravneniâ %D 1987 %P 499-508 %V 23 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_3_a17/ %G ru %F DE_1987_23_3_a17