Theisen, Stefan Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
PhLB388-1996.pdf (Verlagsversion), 773KB
Förger, K., Ovrut, B. A., Theisen, S., & Waldram, D. (1996). Higher-derivative gravity in string theory. Physics Letters B, 388(3), 512-520. doi:10.1016/S0370-2693(96)01175-6.