Louko, Jorma Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
9907004v4.pdf (Preprint), 344KB
jmp.41.1.132.pdf (Verlagsversion), 223KB
Louko, J., & Rovelli, C. (2000). Refined algebraic quantization in the oscillator representation of SL(2,R). Journal of Mathematical Physics, 41(1), 132-155. doi:10.1063/1.533126.