Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1926__95_159144, author = {A. Wintner}, title = {Zur {Theorie} der unendlichen {Differentialsysteme}}, journal = {Mathematische Annalen}, pages = {544--556}, publisher = {mathdoc}, volume = {95}, year = {1926}, zbl = {52.0403.02}, url = {http://geodesic.mathdoc.fr/item/MAN_1926__95_159144/} }
A. Wintner. Zur Theorie der unendlichen Differentialsysteme. Mathematische Annalen, Tome 95 (1926), pp. 544-556. http://geodesic.mathdoc.fr/item/MAN_1926__95_159144/