Lehners, J.-L. Theoretical Cosmology, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
1705.00192.pdf (Preprint), 314KB
Lehners, J.-L. (2019). No smooth beginning for spacetime. International Journal of Modern Physics D, 28(2): 1930005. doi:10.1142/S0218271819300052.