@article{GDZPPN002081032, title = {W-Kurven in der ebenen Lie-Geometrie. II.}, journal = {Elemente der Mathematik}, volume = {39}, year = {1984}, pages = {67-78}, language = {de}, url = {http://dml.mathdoc.fr/item/GDZPPN002081032} }
Pinkall, U. W-Kurven in der ebenen Lie-Geometrie. II.. Elemente der Mathematik, Tome 39 (1984) pp. 67-78. http://gdmltest.u-ga.fr/item/GDZPPN002081032/