@phdthesis{THESE_1930__108__1_0,
     author = {Vasseur, Marcel},
     title = {Sur la conservation d'un r\'eseau conjugu\'e dans la d\'eformation d'une surface},
     series = {Th\`eses de l'entre-deux-guerres},
     number = {108},
     year = {1930},
     language = {fr},
     url = {http://www.numdam.org/item/THESE_1930__108__1_0/}
}