Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1970__11_4_a1, author = {Pultr, Ale\v{s}}, title = {Tensor products in the category of graphs}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {619--639}, publisher = {mathdoc}, volume = {11}, number = {4}, year = {1970}, mrnumber = {0387373}, zbl = {0214.51102}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1970__11_4_a1/} }
Pultr, Aleš. Tensor products in the category of graphs. Commentationes Mathematicae Universitatis Carolinae, Tome 11 (1970) no. 4, pp. 619-639. http://geodesic.mathdoc.fr/item/CMUC_1970__11_4_a1/