%0 Journal Article %A A. Calogero %A G. Carcano %A R. Pini %T Twisted Convex Hulls in the Heisenberg Group %J Journal of convex analysis %D 2007 %P 607-619 %V 14 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/JCA_2007_14_3_JCA_2007_14_3_a7/ %F JCA_2007_14_3_JCA_2007_14_3_a7