@article{1258138140,
author = {Sa Earp, Ricardo and Toubiana, Eric},
title = {Screw motion surfaces in $\Bbb H\sp 2\times\Bbb R$ and $\Bbb S\sp 2\times\Bbb R$},
journal = {Illinois J. Math.},
volume = {49},
number = {2},
year = {2005},
pages = { 1323-1362},
language = {en},
url = {http://dml.mathdoc.fr/item/1258138140}
}
Sa Earp, Ricardo; Toubiana, Eric. Screw motion surfaces in $\Bbb H\sp 2\times\Bbb R$ and $\Bbb S\sp 2\times\Bbb R$. Illinois J. Math., Tome 49 (2005) no. 2, pp. 1323-1362. http://gdmltest.u-ga.fr/item/1258138140/