@article{JCA_2012_19_2_JCA_2012_19_2_a1,
     author = {S. Weis},
     title = {A {Note} on {Touching} {Cones} and {Faces}},
     journal = {Journal of convex analysis},
     pages = {323--353},
     publisher = {mathdoc},
     volume = {19},
     number = {2},
     year = {2012},
     url = {http://geodesic.mathdoc.fr/item/JCA_2012_19_2_JCA_2012_19_2_a1/}
}