%0 Journal Article
%A N. I. Kabanov
%T Differential-geometric methods in the calculus of variations
%J Itogi Nauki i Tekhniki. Seriya Algebra. Geometriya. Topologiya 
%D 1970
%P 193-224
%I mathdoc
%U http://geodesic.mathdoc.fr/item/INTA_1970_a4/
%G ru
%F INTA_1970_a4