%0 Journal Article %A O. F. Men'shikh %T Letter to the editors: “Functionally invariant solutions of second order quasilinear partial differential equations” (Differencial'nye Uravnenija 11 (1975), 533–540) %J Differencialʹnye uravneniâ %D 1976 %P 183 %V 12 %N 1 %U http://geodesic.mathdoc.fr/item/DE_1976_12_1_a24/ %G ru %F DE_1976_12_1_a24