@article{article101b46b2,
title   = {Conformally flat Lorentzian hypersurfaces in the conformal compactification of Lorentz space},
author = {Dussan, Martha P and Magid, M},
year = {2007},
doi = {10.1016/j.geomphys.2007.08.005},
journal   = {Journal of Geometry and Physics}
}