Frolov, Sergey Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
plb378pdf.pdf (Publisher version), 121KB
Arutyunov, G., & Frolov, S. (2006). On AdS5 x s5 string s-matrix. Physics Letters B, 639(3-4), 378-382.