@article{ASENS_1936_3_53__41_0,
     author = {Vincensini, Paul},
     title = {\'Etude des congruences de sph\`eres dont les deux nappes de l'enveloppe se correspondent avec \'equivalence ou applicabilit\'e et probl\`emes de d\'eformation associ\'es},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {41--82},
     publisher = {Elsevier},
     volume = {3e s{\'e}rie, 53},
     year = {1936},
     doi = {10.24033/asens.853},
     zbl = {0014.07802},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.24033/asens.853/}
}