%0 Journal Article %A Z. O. Mel'nik %T On a certain method for solving the mixed problem for a hyperbolic equation with disontinuous coefficients %J Differencialʹnye uravneniâ %D 1966 %P 560-570 %V 2 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1966_2_4_a10/ %G ru %F DE_1966_2_4_a10