%0 Journal Article %A M. I. Sumin %T A maximum principle in the theory of suboptimal control of distributed systems with operator constraints in a~Hilbert space %J Itogi nauki i tehniki. Sovremennaâ matematika i eë priloženiâ. Tematičeskie obzory %D 1999 %P 193-235 %V 66 %I mathdoc %U http://geodesic.mathdoc.fr/item/INTO_1999_66_a3/ %G ru %F INTO_1999_66_a3