@article{1183419302, author = {Wright, J. Edmund}, title = {Double points of unicursal curves}, journal = {Bull. Amer. Math. Soc.}, volume = {14}, number = {3}, year = {1907}, pages = { 389-391}, language = {en}, url = {http://dml.mathdoc.fr/item/1183419302} }
Wright, J. Edmund. Double points of unicursal curves. Bull. Amer. Math. Soc., Tome 14 (1907) no. 3, pp. 389-391. http://gdmltest.u-ga.fr/item/1183419302/