Sandin, P. Geometric Analysis and Gravitation, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
JMP54_042503.pdf (Any fulltext), 3MB
Alhulaimi, B., Coley, A., & Sandin, P. (2013). Anisotropic Einstein-aether cosmological models. Journal of Mathematical Physics, 54: 042503. doi:10.1063/1.4802246.