%0 Journal Article
%A A. G. Sigalov
%T Two-dimensional problems of the calculus of variations in nonparametric form
%J Trudy Moskovskogo matematičeskogo obŝestva
%D 1953
%P 201-233
%V 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MMO_1953_2_a3/
%G ru
%F MMO_1953_2_a3