@article{CMUC_1992__33_4_a14,
     author = {Bella, Angelo and Costantini, Camillo},
     title = {On the {Novak} number of a hyperspace},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {695--698},
     publisher = {mathdoc},
     volume = {33},
     number = {4},
     year = {1992},
     mrnumber = {1240191},
     zbl = {0782.54008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1992__33_4_a14/}
}