Lehners, Jean-Luc String Cosmology, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
1805.01609.pdf (Preprint), 1016KB
universe-04-00100-v2.pdf (Publisher version), 870KB
Feldbrugge, J., Lehners, J.-L., & Turok, N. (2018). Inconsistencies of the New No-Boundary Proposal. Universe, 4(10): 100. doi:10.3390/universe4100100.