@article{RSM_1998__56_2_121214,
     author = {Montaldo, S.},
     title = {A minimising property of the radial projection.},
     journal = {Rendiconti del seminario matematico},
     pages = {55--58},
     year = {1998},
     volume = {56},
     number = {2},
     zbl = {0968.58011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RSM_1998__56_2_121214/}
}