@article{1183417272,
author = {Eisenhart, L. P.},
title = {Infinitesimal deformation of the skew helicoid},
journal = {Bull. Amer. Math. Soc.},
volume = {9},
number = {3},
year = {1902},
pages = { 148-152},
language = {en},
url = {http://dml.mathdoc.fr/item/1183417272}
}
Eisenhart, L. P. Infinitesimal deformation of the skew helicoid. Bull. Amer. Math. Soc., Tome 9 (1902) no. 3, pp. 148-152. http://gdmltest.u-ga.fr/item/1183417272/