%0 Journal Article
%A A. V. Arutyunov
%T Degenerate quadratic forms of the calculus of variations
%J Doklady Akademii Nauk
%D 1993
%P 277-281
%V 333
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1993_333_3_a0/
%G ru
%F DAN_1993_333_3_a0