Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1970__113_171278, author = {Horst Herrlich}, title = {An {Example} in {Category} {Theory.}}, journal = {Mathematische Zeitschrift}, pages = {309--312}, publisher = {mathdoc}, volume = {113}, year = {1970}, zbl = {0179.32102}, url = {http://geodesic.mathdoc.fr/item/MZ_1970__113_171278/} }
Horst Herrlich. An Example in Category Theory.. Mathematische Zeitschrift, Tome 113 (1970), pp. 309-312. http://geodesic.mathdoc.fr/item/MZ_1970__113_171278/