@article{JCA_2010_17_1_JCA_2010_17_1_a19,
     author = {P. Ter\'an},
     title = {Intersections of {Balls} and the {Ball} {Hull} {Mapping}},
     journal = {Journal of convex analysis},
     pages = {277--292},
     publisher = {mathdoc},
     volume = {17},
     number = {1},
     year = {2010},
     url = {http://geodesic.mathdoc.fr/item/JCA_2010_17_1_JCA_2010_17_1_a19/}
}