@phdthesis{THESE_1927__78__1_0,
     author = {Marchaud, M. A.},
     title = {Sur les d\'eriv\'ees et sur les diff\'erences des fonctions de variables r\'eelles},
     series = {Th\`eses de l'entre-deux-guerres},
     number = {78},
     year = {1927},
     language = {fr},
     url = {http://www.numdam.org/item/THESE_1927__78__1_0/}
}