@article{JMPA_1934_9_13__197_0,
     author = {Potron},
     title = {Sur les espaces de {Riemann} admettant un groupe isom\'etrique \`a $n\left(n+1\right)/2$ param\`etres},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {197--216},
     publisher = {Gauthier-Villars},
     volume = {9e s{\'e}rie, 13},
     year = {1934},
     zbl = {0009.13103},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1934_9_13__197_0/}
}