@article{JCA_2012_19_1_JCA_2012_19_1_a11,
     author = {L. Cheng and Y. Zhou},
     title = {On {Approximation} by {\ensuremath{\Delta}-Convex} {Polyhedron} {Support} {Functions} and the {Dual} of {cc(X)} and {wcc(X)}},
     journal = {Journal of convex analysis},
     pages = {201--212},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {2012},
     url = {http://geodesic.mathdoc.fr/item/JCA_2012_19_1_JCA_2012_19_1_a11/}
}