%0 Journal Article %A A. Yanushauskas %T The formulation of well-posed boundary value problems for a class of systems of evolution type %J Differencialʹnye uravneniâ %D 1987 %P 1613-1617 %V 23 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1987_23_9_a17/ %G ru %F DE_1987_23_9_a17