%0 Journal Article
%A H.S.P. Grässer
%T The complete figure for second order multiple integral problems in the calculus of variations. (Short Communication).
%J Aequationes mathematicae
%D 1976
%P 238-239
%V 14
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1976__14_136578/
%F AM2_1976__14_136578