Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{MASLO_1966__16_1_a9, author = {Zelinka, Bohdan}, title = {Introducing an {Orientation} into a {Given} {Non-Directed} {Graph}}, journal = {Mathematica slovaca}, pages = {66--71}, publisher = {mathdoc}, volume = {16}, number = {1}, year = {1966}, mrnumber = {0204325}, zbl = {0138.19501}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MASLO_1966__16_1_a9/} }
Zelinka, Bohdan. Introducing an Orientation into a Given Non-Directed Graph. Mathematica slovaca, Tome 16 (1966) no. 1, pp. 66-71. http://geodesic.mathdoc.fr/item/MASLO_1966__16_1_a9/