@article{GDZPPN002105292,
title = {Isometry groups of Lorentz manifolds.},
journal = {Inventiones mathematicae},
volume = {93},
year = {1988},
pages = {555-566},
language = {en},
url = {http://dml.mathdoc.fr/item/GDZPPN002105292}
}
D'Ambra, G. Isometry groups of Lorentz manifolds.. Inventiones mathematicae, Tome 93 (1988) pp. 555-566. http://gdmltest.u-ga.fr/item/GDZPPN002105292/