@article{AFST_1942_4_6__1_0,
     author = {Paul Vincensini},
     title = {Sur une famille de congruences \`a angle des plans focaux constant},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {1--6},
     publisher = {\'Edouard Privat, Libraire-\'Editeur},
     address = {Toulouse},
     volume = {4e s{\'e}rie, 6},
     year = {1942},
     zbl = {0060.36203},
     mrnumber = {14273},
     language = {fr},
     url = {https://afst.centre-mersenne.org/item/AFST_1942_4_6__1_0/}
}