Loll, Renate Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
328690.pdf (Publisher version), 566KB
Loll, R. (1997). Imposing det E>0 in discrete quantum gravity. Physics Letters B, 399(3-4), 227-232. doi:10.1016/S0370-2693(97)00303-1.