%0 Journal Article %A G. Peskir %T A Duality Principle for the Legendre Transform %J Journal of convex analysis %D 2012 %P 609-63 %V 19 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/JCA_2012_19_3_JCA_2012_19_3_a1/ %F JCA_2012_19_3_JCA_2012_19_3_a1