%0 Journal Article %A V. M. Teshukov %T The Goursat problem for the equation of plane potential conical flows of a gas %J Doklady Akademii Nauk %D 1975 %P 303-306 %V 223 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_223_2_a11/ %G ru %F DAN_1975_223_2_a11