%0 Journal Article
%A Clarke, Frank H.
%A Zeidan, Vera
%T Sufficiency and the Jacobi Condition in the Calculus of Variations
%J Canadian journal of mathematics
%D 1986
%P 1199-1209
%V 38
%N 5
%U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1986-060-5/
%R 10.4153/CJM-1986-060-5
%F 10_4153_CJM_1986_060_5