@phdthesis{THESE_1944__261__1_0, author = {Oudart, A.}, title = {Sur le sch\'ema de {Helmholtz-Kirchhoff}}, series = {Th\`eses de l'entre-deux-guerres}, number = {261}, year = {1944}, language = {fr}, url = {http://archive.numdam.org/item/THESE_1944__261__1_0/} }