%0 Journal Article %A V. B. Dybin %T Correct formulation of the Riemann problem in the case of an %J Doklady Akademii Nauk %D 1985 %P 785-788 %V 280 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1985_280_4_a2/ %G ru %F DAN_1985_280_4_a2