@article{CMJ_2004__54_1_a3,
     author = {Kot, Piotr},
     title = {Description of simple exceptional sets in the unit ball},
     journal = {Czechoslovak Mathematical Journal},
     pages = {55--63},
     publisher = {mathdoc},
     volume = {54},
     number = {1},
     year = {2004},
     mrnumber = {2040218},
     zbl = {1052.30006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2004__54_1_a3/}
}