@phdthesis{THESE_1920__21__1_0, author = {Haum\'e-H\'erouard}, title = {Contribution \`a l'\'etude des surfaces r\'eelles rapport\'ees aux coordonn\'ees curvilignes de leurs lignes de courbure}, series = {Th\`eses de l'entre-deux-guerres}, type = {Doctorat d'\'Etat}, number = {21}, year = {1920}, language = {fr}, url = {http://www.numdam.org/item/THESE_1920__21__1_0/} }