%0 Journal Article
%A JOHN DAVID LOGAN
%T First Integrals in the Discrete Variational Calculus
%J Aequationes mathematicae
%D 1973
%P 210-220
%V 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1973__9_136348/
%F AM2_1973__9_136348