@article{DMDICO_2001_21_1_a1,
     author = {Schott, Dieter},
     title = {Ball intersection model for {Fej\'er} zones of convex closed sets},
     journal = {Discussiones Mathematicae. Differential Inclusions, Control and Optimization},
     pages = {51--79},
     year = {2001},
     volume = {21},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMDICO_2001_21_1_a1/}
}