@article{05019292, title = {The envelope of a subcategory in topology and group theory.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2005}, year = {2005}, pages = {3387-3404}, doi = {10.1155/IJMMS.2005.3387}, zbl = {1145.18300}, language = {en}, url = {http://dml.mathdoc.fr/item/05019292} }
Ayache, Ahmed; Echi, Othman. The envelope of a subcategory in topology and group theory.. International Journal of Mathematics and Mathematical Sciences, Tome 2005 (2005) pp. 3387-3404. doi : 10.1155/IJMMS.2005.3387. http://gdmltest.u-ga.fr/item/05019292/