%0 Journal Article %A V. D. Repnikov %T Limit relations between solutions of some equations of hyperbolic, parabolic and elliptic types %J Differencialʹnye uravneniâ %D 1991 %P 165-167 %V 27 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1991_27_1_a21/ %G ru %F DE_1991_27_1_a21