@article{1102983324, author = {Warfield, R. B.}, title = {Purity and algebraic compactness for modules.}, journal = {Pacific J. Math.}, volume = {31}, number = {3}, year = {1969}, pages = { 699-719}, language = {en}, url = {http://dml.mathdoc.fr/item/1102983324} }
Warfield, R. B. Purity and algebraic compactness for modules.. Pacific J. Math., Tome 31 (1969) no. 3, pp. 699-719. http://gdmltest.u-ga.fr/item/1102983324/