@article{JMPA_1924_9_3__51_0,
     author = {Bloch, Andr\'e},
     title = {Sur les cercles paratactiques et la cyclide de {Dupin}},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {51--77},
     publisher = {Gauthier-Villars},
     volume = {9e s{\'e}rie, 3},
     year = {1924},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1924_9_3__51_0/}
}