%0 Journal Article %A O. A. Repin %T On the solvability of a problem with a boundary condition on the characteristics for a degenerate hyperbolic equation %J Differencialʹnye uravneniâ %D 1998 %P 110-113 %V 34 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1998_34_1_a16/ %G ru %F DE_1998_34_1_a16