@article{JCA_2007_14_2_JCA_2007_14_2_a6,
     author = {M. Silhavy},
     title = {Zeros of the {Polyconvex} {Hull} of {Powers} of the {Distance} and {s-Polyconvexity}},
     journal = {Journal of convex analysis},
     pages = {319--344},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {2007},
     url = {http://geodesic.mathdoc.fr/item/JCA_2007_14_2_JCA_2007_14_2_a6/}
}