%0 Journal Article %A G. D. Karatoprakliev %T A nonlocal boundary value problem for elliptic-parabolic equations %J Differencialʹnye uravneniâ %D 1993 %P 902-904 %V 29 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1993_29_5_a20/ %G ru %F DE_1993_29_5_a20