@article{GDZPPN002241129, title = {On the transformation of unicursal surfaces}, journal = {Mathematische Annalen}, volume = {3}, year = {1871}, pages = {469-474}, zbl = {03.0424.02}, url = {http://dml.mathdoc.fr/item/GDZPPN002241129} }
Cayley. On the transformation of unicursal surfaces. Mathematische Annalen, Tome 3 (1871) pp. 469-474. http://gdmltest.u-ga.fr/item/GDZPPN002241129/