@article{1029002211, author = {Stein, Elliott}, title = {Free actions on products of spheres.}, journal = {Michigan Math. J.}, volume = {26}, number = {1}, year = {1979}, pages = { 187-193}, language = {en}, url = {http://dml.mathdoc.fr/item/1029002211} }
Stein, Elliott. Free actions on products of spheres.. Michigan Math. J., Tome 26 (1979) no. 1, pp. 187-193. http://gdmltest.u-ga.fr/item/1029002211/