%0 Journal Article %A V. S. Dryuma %T A group interpretation of nonlinear wave equations that are integrable by the method of the inverse problem of scattering theory %J Differencialʹnye uravneniâ %D 1977 %P 1713-1715 %V 13 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_9_a17/ %G ru %F DE_1977_13_9_a17