%0 Journal Article %A N. P. Kulikov %T On the Cauchy problem for degenerate hyperbolic equations %J Differencialʹnye uravneniâ %D 1980 %P 556-557 %V 16 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1980_16_3_a22/ %G ru %F DE_1980_16_3_a22