@article{CMUC_2006__47_1_a12,
     author = {Pi\'oro, Konrad},
     title = {On a property of neighborhood hypergraphs},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {149--154},
     publisher = {mathdoc},
     volume = {47},
     number = {1},
     year = {2006},
     mrnumber = {2223974},
     zbl = {1150.05405},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2006__47_1_a12/}
}