%0 Journal Article %A K. Zhang %T Estimates of Quasiconvex Polytopes in the Calculus of Variations %J Journal of convex analysis %D 2006 %P 37-5 %V 13 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/JCA_2006_13_1_JCA_2006_13_1_a2/ %F JCA_2006_13_1_JCA_2006_13_1_a2