@article{MASLO_1986__36_2_a1,
     author = {Zelinka, Bohdan},
     title = {Disconnected neighbourhood graphs},
     journal = {Mathematica slovaca},
     pages = {109--110},
     publisher = {mathdoc},
     volume = {36},
     number = {2},
     year = {1986},
     mrnumber = {849700},
     zbl = {0603.05039},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1986__36_2_a1/}
}