%0 Journal Article %A S. V. Meleshko %T On double waves of equations with three independent variables %J Doklady Akademii Nauk %D 1995 %P 740-742 %V 345 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1995_345_6_a4/ %G ru %F DAN_1995_345_6_a4