@article{1178207817,
author = {Ehrlich, Paul E. and S\'anchez, Miguel},
title = {Some semi-Riemannian volume comparison theorems},
journal = {Tohoku Math. J. (2)},
volume = {52},
number = {4},
year = {2000},
pages = { 331-348},
language = {en},
url = {http://dml.mathdoc.fr/item/1178207817}
}
Ehrlich, Paul E.; Sánchez, Miguel. Some semi-Riemannian volume comparison theorems. Tohoku Math. J. (2), Tome 52 (2000) no. 4, pp. 331-348. http://gdmltest.u-ga.fr/item/1178207817/