@article{1183420178,
author = {Smith, Eva M.},
title = {Some surfaces having a family of helices as one set of lines of curvature},
journal = {Bull. Amer. Math. Soc.},
volume = {16},
number = {3},
year = {1909},
pages = { 309-314},
language = {en},
url = {http://dml.mathdoc.fr/item/1183420178}
}
Smith, Eva M. Some surfaces having a family of helices as one set of lines of curvature. Bull. Amer. Math. Soc., Tome 16 (1909) no. 3, pp. 309-314. http://gdmltest.u-ga.fr/item/1183420178/