@article{DMGT_1998_18_2_a2,
     author = {Zelinka, Bohdan},
     title = {On the simplex graph operator},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {165--169},
     publisher = {mathdoc},
     volume = {18},
     number = {2},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_1998_18_2_a2/}
}