Voir la notice de l'article provenant de la source Novi sad journal of mathematics website
@article{NSJOM_1991_21_1a_5, author = {Petri\'c Milenko V.}, title = {Connectedness of the generalized direct product of regular digraphs}, journal = {Novi Sad Journal of Mathematics}, pages = {57-64}, publisher = {mathdoc}, volume = {21}, number = {1}, year = {1991}, url = {http://geodesic.mathdoc.fr/item/NSJOM_1991_21_1a_5/} }
Petrić Milenko V. Connectedness of the generalized direct product of regular digraphs. Novi Sad Journal of Mathematics, Tome 21 (1991) no. 1. http://geodesic.mathdoc.fr/item/NSJOM_1991_21_1a_5/