Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{CMH_1978__53_139762, author = {Stefan Jackowski}, title = {The {Euler} class and periodicity of group cohomology.}, journal = {Commentarii mathematici Helvetici}, pages = {643--650}, publisher = {mathdoc}, volume = {53}, year = {1978}, zbl = {0404.20043}, url = {http://geodesic.mathdoc.fr/item/CMH_1978__53_139762/} }
Stefan Jackowski. The Euler class and periodicity of group cohomology.. Commentarii mathematici Helvetici, Tome 53 (1978), pp. 643-650. http://geodesic.mathdoc.fr/item/CMH_1978__53_139762/