@article{01669220,
title = {Homogeneous Lorentz manifolds with simple isometry group.},
journal = {Beitr\"age zur Algebra und Geometrie},
volume = {42},
year = {2001},
pages = {451-461},
zbl = {0998.53048},
language = {en},
url = {http://dml.mathdoc.fr/item/01669220}
}
Witte, Dave. Homogeneous Lorentz manifolds with simple isometry group.. Beiträge zur Algebra und Geometrie, Tome 42 (2001) pp. 451-461. http://gdmltest.u-ga.fr/item/01669220/