@article{JMPA_1942_9_21__101_0,
     author = {Segond, Marcel},
     title = {Aire et congruence de gravit\'e d'une courbe gauche ferm\'ee},
     journal = {Journal de Math\'ematiques Pures et Appliqu\'ees},
     pages = {101--109},
     publisher = {Gauthier-Villars},
     volume = {9e s{\'e}rie, 21},
     year = {1942},
     zbl = {0026.25802},
     language = {fr},
     url = {http://www.numdam.org/item/JMPA_1942_9_21__101_0/}
}