@article{AFST_1939_4_3__155_0, author = {J. Kuntzmann}, title = {Contribution \`a l'\'etude des syst\`emes multiformes}, journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques}, pages = {155--194}, publisher = {\'Edouard Privat, Libraire-\'Editeur}, address = {Toulouse}, volume = {4e s{\'e}rie, 3}, year = {1939}, zbl = {0024.29803}, language = {fr}, url = {https://afst.centre-mersenne.org/item/AFST_1939_4_3__155_0/} }