@article{GDZPPN002310848,
title = {Differentiable Circle Group Actions on Homotopy Complex Projective Spaces.},
journal = {Mathematische Annalen},
volume = {217},
year = {1975},
pages = {73-80},
zbl = {0285.57025},
url = {http://dml.mathdoc.fr/item/GDZPPN002310848}
}
Wang, Kai. Differentiable Circle Group Actions on Homotopy Complex Projective Spaces.. Mathematische Annalen, Tome 217 (1975) pp. 73-80. http://gdmltest.u-ga.fr/item/GDZPPN002310848/