@article{1256053086, author = {Connell, E. H.}, title = {Characteristic classes}, journal = {Illinois J. Math.}, volume = {14}, number = {4}, year = {1970}, pages = { 496-521}, language = {en}, url = {http://dml.mathdoc.fr/item/1256053086} }
Connell, E. H. Characteristic classes. Illinois J. Math., Tome 14 (1970) no. 4, pp. 496-521. http://gdmltest.u-ga.fr/item/1256053086/