@article{GDZPPN002385597, title = {Grenzlinien der Hodographentransformation.}, journal = {Mathematische Zeitschrift}, volume = {62}, year = {1955}, pages = {514-524}, zbl = {0074.42104}, url = {http://dml.mathdoc.fr/item/GDZPPN002385597} }
Geringer, Hilda. Grenzlinien der Hodographentransformation.. Mathematische Zeitschrift, Tome 62 (1955) pp. 514-524. http://gdmltest.u-ga.fr/item/GDZPPN002385597/