Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{PORMA_1970__29_4_115125, author = {Hoppmann, A.G.}, title = {Eine klassification der generalisierten kurven}, journal = {Portugaliae mathematica}, pages = {167--175}, publisher = {mathdoc}, volume = {29}, number = {4}, year = {1970}, mrnumber = {0292037}, zbl = {0215.51901}, language = {de}, url = {http://geodesic.mathdoc.fr/item/PORMA_1970__29_4_115125/} }
Hoppmann, A.G. Eine klassification der generalisierten kurven. Portugaliae mathematica, Tome 29 (1970) no. 4, pp. 167-175. http://geodesic.mathdoc.fr/item/PORMA_1970__29_4_115125/