%0 Journal Article %A P. Góra %A R. J. Stern %T Subdifferential Analysis of the Van der Waerden Function %J Journal of convex analysis %D 2011 %P 699-705 %V 18 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/JCA_2011_18_3_JCA_2011_18_3_a6/ %F JCA_2011_18_3_JCA_2011_18_3_a6