@article{JCA_1999_6_2_JCA_1999_6_2_a10,
     author = {J. Bair and J. C. Dupin},
     title = {The {Barrier} {Cone} of a {Convex} {Set} and the {Closure} of the {Cover}},
     journal = {Journal of convex analysis},
     pages = {395--398},
     publisher = {mathdoc},
     volume = {6},
     number = {2},
     year = {1999},
     url = {http://geodesic.mathdoc.fr/item/JCA_1999_6_2_JCA_1999_6_2_a10/}
}