%0 Journal Article %A E. G. D'yakonov %T Improved well-posedness of problems of mathematical physics related to linear constraints %J Differencialʹnye uravneniâ %D 2000 %P 508-518 %V 36 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2000_36_4_a10/ %G ru %F DE_2000_36_4_a10