Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MAN_1929__101_159346, author = {H. Geppert}, title = {Die permanenten {Wellen} in ringf\"ormigen {Kan\"alen}}, journal = {Mathematische Annalen}, pages = {424--445}, publisher = {mathdoc}, volume = {101}, year = {1929}, zbl = {55.0470.05}, url = {http://geodesic.mathdoc.fr/item/MAN_1929__101_159346/} }
H. Geppert. Die permanenten Wellen in ringförmigen Kanälen. Mathematische Annalen, Tome 101 (1929), pp. 424-445. http://geodesic.mathdoc.fr/item/MAN_1929__101_159346/