%0 Journal Article %A Ar. B. Bazarbekov %A Ak. B. Bazarbekov %T The Goursat and Darboux Problems for the Three-Dimensional Wave Equation %J Differencialʹnye uravneniâ %D 2002 %P 660-665 %V 38 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_2002_38_5_a9/ %G ru %F DE_2002_38_5_a9