Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{ARM_1973__9_2_a6, author = {Baldri\'an, Ji\v{r}{\'\i}}, title = {On strong homomorphisms of finitely semigenerated languages}, journal = {Archivum mathematicum}, pages = {89--97}, publisher = {mathdoc}, volume = {09}, number = {2}, year = {1973}, mrnumber = {0356586}, zbl = {0296.68083}, language = {en}, url = {http://geodesic.mathdoc.fr/item/ARM_1973__9_2_a6/} }
Baldrián, Jiří. On strong homomorphisms of finitely semigenerated languages. Archivum mathematicum, Tome 09 (1973) no. 2, pp. 89-97. http://geodesic.mathdoc.fr/item/ARM_1973__9_2_a6/