%0 Journal Article %A T. D. Dzhuraev %A Yu. P. Apakov %T The Gellerstedt problem for a parabolic-hyperbolic equation in a three-dimensional space %J Differencialʹnye uravneniâ %D 1990 %P 438-448 %V 26 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1990_26_3_a10/ %G ru %F DE_1990_26_3_a10