Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1970__20_4_a10, author = {Koman, Milan}, title = {Extremal {Crossing} {Numbers} of {Complete} $k${-Chromatic} {Graphs}}, journal = {Mathematica slovaca}, pages = {315--325}, publisher = {mathdoc}, volume = {20}, number = {4}, year = {1970}, mrnumber = {0325431}, zbl = {0209.27902}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1970__20_4_a10/} }
Koman, Milan. Extremal Crossing Numbers of Complete $k$-Chromatic Graphs. Mathematica slovaca, Tome 20 (1970) no. 4, pp. 315-325. http://geodesic.mathdoc.fr/item/MASLO_1970__20_4_a10/