%0 Journal Article %A Tyrrell Rockafellar, R. %T Hamiltonian trajectories and saddle points in mathematical economics %J Control and Cybernetics %D 2009 %P 1575-1588 %V 38 %N 4B %I mathdoc %U http://geodesic.mathdoc.fr/item/CC_2009_38_4B_a15/ %G en %F CC_2009_38_4B_a15