@article{GDZPPN00205311X,
title = {Les r\'eseaux Riemanniens.},
journal = {Commentarii mathematici Helvetici},
volume = {13},
year = {1940},
pages = {54-66},
url = {http://dml.mathdoc.fr/item/GDZPPN00205311X}
}
Blanc, Charles. Les réseaux Riemanniens.. Commentarii mathematici Helvetici, Tome 13 (1940) pp. 54-66. http://gdmltest.u-ga.fr/item/GDZPPN00205311X/