@article{BSMA_1875__9__142_1,
     author = {Nicola{\"\i}d\`es, N.},
     title = {Sur quelques surfaces \`a courbure constante},
     journal = {Bulletin des Sciences Math\'ematiques et Astronomiques},
     pages = {142--145},
     publisher = {Gauthier-Villars},
     volume = {9},
     year = {1875},
     language = {fr},
     url = {http://archive.numdam.org/item/BSMA_1875__9__142_1/}
}