%0 Journal Article
%A A. M. Vinogradov
%T The geometry of nonlinear differential equations
%J Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara
%D 1980
%P 89-134
%V 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/INTG_1980_11_a2/
%G ru
%F INTG_1980_11_a2