@article{JCA_2017_24_1_JCA_2017_24_1_a14,
     author = {J. Tsang and R. Pereira},
     title = {Defining a {Unique} {Median} via {Minimizing} {Families} of {Norms}},
     journal = {Journal of convex analysis},
     pages = {199--212},
     year = {2017},
     volume = {24},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/JCA_2017_24_1_JCA_2017_24_1_a14/}
}