@article{MZ_1939__45_168855,
     author = {E., Cartan},
     title = {Sur des familles remarquables d'hypersurfaces isoparam\'etriques dans les spaces sph\'eriques},
     journal = {Mathematische Zeitschrift},
     pages = {335--367},
     publisher = {mathdoc},
     volume = {45},
     year = {1939},
     zbl = {0021.15603},
     url = {http://geodesic.mathdoc.fr/item/MZ_1939__45_168855/}
}