Lehners, J.-L. Theoretical Cosmology, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
2008.04134.pdf (Preprint), 411KB
PhysRevD.102.123539.pdf (Publisher version), 380KB
Jonas, C., & Lehners, J.-L. (2020). No-boundary solutions are robust to quantum gravity corrections. Physical Review D, 102(12): 123539. doi:10.1103/PhysRevD.102.123539.