@phdthesis{THESE_1931__121__1_0,
     author = {Th\'eodoresco, N.},
     title = {La d\'eriv\'ee ar\'eolaire et ses applications \`a la physique math\'ematique},
     series = {Th\`eses de l'entre-deux-guerres},
     number = {121},
     year = {1931},
     zbl = {0003.20601},
     language = {fr},
     url = {http://archive.numdam.org/item/THESE_1931__121__1_0/}
}