@article{1029001624, author = {Dejter, Italo Jos\'e}, title = {Smooth $S^1$-manifolds in the homotopy type of $CP^3$.}, journal = {Michigan Math. J.}, volume = {22}, number = {3}, year = {1976}, pages = { 83-95}, language = {en}, url = {http://dml.mathdoc.fr/item/1029001624} }
Dejter, Italo José. Smooth $S^1$-manifolds in the homotopy type of $CP^3$.. Michigan Math. J., Tome 22 (1976) no. 3, pp. 83-95. http://gdmltest.u-ga.fr/item/1029001624/