%0 Journal Article %A Volle, M. %T Duality for the level sum of quasiconvex functions and applications %J ESAIM: Control, Optimisation and Calculus of Variations %D 1998 %P 329-343 %V 3 %I EDP-Sciences %U http://www.numdam.org/item/COCV_1998__3__329_0/ %G en %F COCV_1998__3__329_0