@article{1102702807, author = {Roitberg, Joseph}, title = {On weak epimorphisms in homotopy theory.}, journal = {Pacific J. Math.}, volume = {125}, number = {2}, year = {1986}, pages = { 183-187}, language = {en}, url = {http://dml.mathdoc.fr/item/1102702807} }
Roitberg, Joseph. On weak epimorphisms in homotopy theory.. Pacific J. Math., Tome 125 (1986) no. 2, pp. 183-187. http://gdmltest.u-ga.fr/item/1102702807/