Davila, Jose Manuel Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
CQG_27_075007.pdf (Any fulltext), 179KB
Davila, J. M., & Schubert, C. (2010). Effective action for Einstein-Maxwell theory at order RF4. Classical and quantum gravity, 27(7): 075007. doi:10.1088/0264-9381/27/7/075007.