%0 Journal Article
%A John David Logan
%T Fist Integrals in the Discrete Variational Calculus. (Short Communications).
%J Aequationes mathematicae
%D 1972
%P 199-200
%V 8
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1972__8_136288/
%F AM2_1972__8_136288