Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1993__43_1_a1, author = {Knor, Martin and Niepel, \v{L}udov{\'\i}t and \v{S}olt\'es, \v{L}ubom{\'\i}r}, title = {Centers in line graphs}, journal = {Mathematica slovaca}, pages = {11--20}, publisher = {mathdoc}, volume = {43}, number = {1}, year = {1993}, mrnumber = {1216264}, zbl = {0772.05091}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1993__43_1_a1/} }
Knor, Martin; Niepel, Ľudovít; Šoltés, Ľubomír. Centers in line graphs. Mathematica slovaca, Tome 43 (1993) no. 1, pp. 11-20. http://geodesic.mathdoc.fr/item/MASLO_1993__43_1_a1/