%0 Journal Article %A T. D. Dzhuraev %A Ya. Popelek %T On~the canonical forms of third-order partial differential equations %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1989 %P 203-204 %V 44 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1989_44_4_a6/ %G en %F RM_1989_44_4_a6