@article{JCA_2021_28_1_JCA_2021_28_1_a14,
     author = {J.-P. Chancelier and M. De Lara},
     title = {Hidden {Convexity} in the l\protect\textsubscript{0} {Pseudonorm}},
     journal = {Journal of convex analysis},
     pages = {203--236},
     year = {2021},
     volume = {28},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/JCA_2021_28_1_JCA_2021_28_1_a14/}
}