%0 Journal Article %A A. V. Plotnikov %T Compactness of the attainability set of a controllable differential inclusion in partial derivatives %J Differencialʹnye uravneniâ %D 1991 %P 526-530 %V 27 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1991_27_3_a18/ %G ru %F DE_1991_27_3_a18