@article{CMH_1949__22_138969,
     author = {Andr\'e Lichnerowicz},
     title = {Quelques th\'eor\`emes de g\'eom\'etrie diff\'erentielle globale.},
     journal = {Commentarii mathematici Helvetici},
     pages = {271--301},
     publisher = {mathdoc},
     volume = {22},
     year = {1949},
     zbl = {0039.17501},
     url = {http://geodesic.mathdoc.fr/item/CMH_1949__22_138969/}
}