@article{GDZPPN002215527, title = {On generators and cogenerators.}, journal = {Manuscripta mathematica}, volume = {2}, year = {1970}, pages = {49-66}, zbl = {0188.05101}, url = {http://dml.mathdoc.fr/item/GDZPPN002215527} }
Pareigis, Bodo; Sweedler, Moss E. On generators and cogenerators.. Manuscripta mathematica, Tome 2 (1970) pp. 49-66. http://gdmltest.u-ga.fr/item/GDZPPN002215527/