@article{1183526656, author = {Wasserman, Arthur}, title = {Morse theory for $G$-manifolds}, journal = {Bull. Amer. Math. Soc.}, volume = {71}, number = {6}, year = {1965}, pages = { 384-388}, language = {en}, url = {http://dml.mathdoc.fr/item/1183526656} }
Wasserman, Arthur. Morse theory for $G$-manifolds. Bull. Amer. Math. Soc., Tome 71 (1965) no. 6, pp. 384-388. http://gdmltest.u-ga.fr/item/1183526656/