@article{GDZPPN00205826X,
title = {On a Certain Property of Closed Hypersurfaces in an EINSTEIN Space.},
journal = {Commentarii mathematici Helvetici},
volume = {38},
year = {1963},
pages = {165-171},
zbl = {0198.54102},
url = {http://dml.mathdoc.fr/item/GDZPPN00205826X}
}
Katsurada, Yoshie. On a Certain Property of Closed Hypersurfaces in an EINSTEIN Space.. Commentarii mathematici Helvetici, Tome 38 (1963) pp. 165-171. http://gdmltest.u-ga.fr/item/GDZPPN00205826X/