Lewandowski, Jerzy Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
206204.pdf (Publisher version), 165KB
Lewandowski, J., & Wisniewski, J. (1999). Degenerate sectors of the Ashtekar gravity. Classical and Quantum Gravity, 16(10), 3057-3069.