%0 Journal Article %A T. P. Rudneva %T An initial-boundary value problem for a degenerate parabolic equation with a variable time direction %J Differencialʹnye uravneniâ %D 1989 %P 867-875 %V 25 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1989_25_5_a16/ %G ru %F DE_1989_25_5_a16