%0 Journal Article %A V. N. Gol'dberg %T The branching of the solutions of mixed problems for almost linear hyperbolic systems of the plane %J Differencialʹnye uravneniâ %D 1976 %P 686-699 %V 12 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1976_12_4_a11/ %G ru %F DE_1976_12_4_a11