@article{04013468,
title = {Totally umbilical CR-submanifolds of semi-Riemannian K\"ahler manifolds.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {10},
year = {1987},
pages = {551-556},
doi = {10.1155/S0161171287000668},
zbl = {0624.53030},
language = {en},
url = {http://dml.mathdoc.fr/item/04013468}
}
Duggal, K.L.; Sharma, R. Totally umbilical CR-submanifolds of semi-Riemannian Kähler manifolds.. International Journal of Mathematics and Mathematical Sciences, Tome 10 (1987) pp. 551-556. doi : 10.1155/S0161171287000668. http://gdmltest.u-ga.fr/item/04013468/