%0 Journal Article %A M. E. Lerner %T On the formulation of boundary value problems for equations of mixed parabolic-hyperbolic type %J Differencialʹnye uravneniâ %D 1998 %P 1430-1432 %V 34 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1998_34_10_a19/ %G ru %F DE_1998_34_10_a19