@article{CMH_1991__66_4_140232,
     author = {Michel Brion},
     title = {Sur la g\'eom\'etrie des vari\'et\'es sph\'eriques.},
     journal = {Commentarii mathematici Helvetici},
     pages = {237--262},
     publisher = {mathdoc},
     volume = {66},
     number = {4},
     year = {1991},
     zbl = {0741.14027},
     url = {http://geodesic.mathdoc.fr/item/CMH_1991__66_4_140232/}
}