%0 Journal Article %A P. A. Vakulchik %T A difference scheme on a mesh of characteristic surface elements for the solution of a two-dimensional problem of gas dynamics %J Differencialʹnye uravneniâ %D 1985 %P 2168-2170 %V 21 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1985_21_12_a20/ %G ru %F DE_1985_21_12_a20