@article{1256044541, author = {Waner, Stefan}, title = {Periodicity in the cohomology of universal $G$-spaces}, journal = {Illinois J. Math.}, volume = {30}, number = {3}, year = {1986}, pages = { 468-478}, language = {en}, url = {http://dml.mathdoc.fr/item/1256044541} }
Waner, Stefan. Periodicity in the cohomology of universal $G$-spaces. Illinois J. Math., Tome 30 (1986) no. 3, pp. 468-478. http://gdmltest.u-ga.fr/item/1256044541/