@article{1256047939, author = {Stong, R. E.}, title = {Semi-free group actions}, journal = {Illinois J. Math.}, volume = {23}, number = {4}, year = {1979}, pages = { 666-680}, language = {en}, url = {http://dml.mathdoc.fr/item/1256047939} }
Stong, R. E. Semi-free group actions. Illinois J. Math., Tome 23 (1979) no. 4, pp. 666-680. http://gdmltest.u-ga.fr/item/1256047939/