@article{1102906194, author = {Portnoy, Esther}, title = {Developable surfaces in hyperbolic space.}, journal = {Pacific J. Math.}, volume = {61}, number = {2}, year = {1975}, pages = { 281-288}, language = {en}, url = {http://dml.mathdoc.fr/item/1102906194} }
Portnoy, Esther. Developable surfaces in hyperbolic space.. Pacific J. Math., Tome 61 (1975) no. 2, pp. 281-288. http://gdmltest.u-ga.fr/item/1102906194/