Andersson, Lars Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
0701452.pdf (Preprint), 469KB
Andersson, L., Barbot, T., Beguin, F., & Zeghib, A. (n.d.). Cosmological time versus CMC time II: the de Sitter and anti-de Sitter cases.