@article{00617208,
title = {On totally umbilical submanifolds of manifolds with certain recurrent condition imposed on the curvature tensor.},
journal = {Mathematica Pannonica},
volume = {5},
year = {1994},
pages = {119-130},
zbl = {0806.53017},
language = {en},
url = {http://dml.mathdoc.fr/item/00617208}
}
Ewert-Krzemieniewski, Stanisław. On totally umbilical submanifolds of manifolds with certain recurrent condition imposed on the curvature tensor.. Mathematica Pannonica, Tome 5 (1994) pp. 119-130. http://gdmltest.u-ga.fr/item/00617208/