%0 Journal Article %A V. N. Vragov %T The Cauchy problem for certain parabolic-hyperbolic equations %J Doklady Akademii Nauk %D 1973 %P 536-539 %V 212 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_212_3_a2/ %G ru %F DAN_1973_212_3_a2