@article{JMPA_1939_9_18__63_0,
     author = {Dubreil, Paul and Dubreil-Jacotin, Marie-Louise},
     title = {Th\'eorie alg\'ebrique des relations d'\'equivalence},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {63--95},
     publisher = {Gauthier-Villars},
     volume = {9e s{\'e}rie, 18},
     year = {1939},
     zbl = {0021.01402},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1939_9_18__63_0/}
}