Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1905__61_158243, author = {Paul Gordan}, title = {Die partiellen {Differentialgleichungen} des {Valentinerproblems}}, journal = {Mathematische Annalen}, pages = {453--526}, publisher = {mathdoc}, volume = {61}, year = {1905}, zbl = {37.0142.01}, url = {https://geodesic-test.mathdoc.fr/item/MAN_1905__61_158243/} }
Paul Gordan. Die partiellen Differentialgleichungen des Valentinerproblems. Mathematische Annalen, Tome 61 (1905), pp. 453-526. https://geodesic-test.mathdoc.fr/item/MAN_1905__61_158243/