@phdthesis{THESE_1939__229__1_0,
     author = {Courtand, Marc},
     title = {Sur les courbes gauches du troisi\`eme et du quatri\`eme ordre en g\'eom\'etrie finie},
     series = {Th\`eses de l'entre-deux-guerres},
     number = {229},
     year = {1939},
     language = {fr},
     url = {http://www.numdam.org/item/THESE_1939__229__1_0/}
}