Voir la notice de l'article provenant de la source Czech Digital Mathematics Library
@article{CMUC_1974__15_1_a14, author = {Tiller, John}, title = {Unions in $E-M$ categories and coreflective subcategories}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {173--187}, publisher = {mathdoc}, volume = {15}, number = {1}, year = {1974}, mrnumber = {0338114}, zbl = {0281.18001}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1974__15_1_a14/} }
Tiller, John. Unions in $E-M$ categories and coreflective subcategories. Commentationes Mathematicae Universitatis Carolinae, Tome 15 (1974) no. 1, pp. 173-187. http://geodesic.mathdoc.fr/item/CMUC_1974__15_1_a14/