@article{1200774202,
author = {Naitoh, Hiroo},
title = {Isotropic submanifolds with parallel second fundamental form in $P\spm(c)$},
journal = {Osaka J. Math.},
volume = {18},
number = {1},
year = {1981},
pages = { 427-464},
language = {en},
url = {http://dml.mathdoc.fr/item/1200774202}
}
Naitoh, Hiroo. Isotropic submanifolds with parallel second fundamental form in $P\spm(c)$. Osaka J. Math., Tome 18 (1981) no. 1, pp. 427-464. http://gdmltest.u-ga.fr/item/1200774202/