@article{1256054110, author = {Gilbert, W. J.}, title = {Some examples for weak category and conilpotency}, journal = {Illinois J. Math.}, volume = {12}, number = {4}, year = {1968}, pages = { 421-432}, language = {en}, url = {http://dml.mathdoc.fr/item/1256054110} }
Gilbert, W. J. Some examples for weak category and conilpotency. Illinois J. Math., Tome 12 (1968) no. 4, pp. 421-432. http://gdmltest.u-ga.fr/item/1256054110/