Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_1998_28_3a_10, author = {Ma\v{s}ulovi\'c Dragan}, title = {On the path number of a digraph}, journal = {Novi Sad Journal of Mathematics}, pages = {115-117}, publisher = {mathdoc}, volume = {28}, number = {3}, year = {1998}, url = {http://geodesic.mathdoc.fr/item/NSJOM_1998_28_3a_10/} }
Mašulović Dragan. On the path number of a digraph. Novi Sad Journal of Mathematics, Tome 28 (1998) no. 3. http://geodesic.mathdoc.fr/item/NSJOM_1998_28_3a_10/