@article{MAN_1974__208_162566, author = {Nikcolaas H. Kuiper}, title = {The {Quotient} {Space} of {C} {P} (2) by {Complex} {Conjugation} is the {4-Sphere.}}, journal = {Mathematische Annalen}, pages = {175--178}, publisher = {mathdoc}, volume = {208}, year = {1974}, language = {en}, url = {http://geodesic.mathdoc.fr/item/MAN_1974__208_162566/} }