@phdthesis{THESE_1915__7__1_0, author = {P\'er\`es, Joseph}, title = {Sur les fonctions permutables de premi\`ere esp\`ece de {M.} {Vito} {Volterra}}, series = {Th\`eses de l'entre-deux-guerres}, number = {7}, year = {1915}, language = {fr}, url = {http://www.numdam.org/item/THESE_1915__7__1_0/} }