@article{1102721106,
author = {Guadalupe, Irwen Valle and Rodriguez, Lucio},
title = {Normal curvature of surfaces in space forms.},
journal = {Pacific J. Math.},
volume = {109},
number = {2},
year = {1983},
pages = { 95-103},
language = {en},
url = {http://dml.mathdoc.fr/item/1102721106}
}
Guadalupe, Irwen Valle; Rodriguez, Lucio. Normal curvature of surfaces in space forms.. Pacific J. Math., Tome 109 (1983) no. 2, pp. 95-103. http://gdmltest.u-ga.fr/item/1102721106/