Nicolai, Hermann Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;
351641.pdf (Publisher version), 723KB
Casher, A., Englert, F., Nicolai, H., & Rooman, M. (1984). The mass spectrum of supergravity on the round seven-sphere. Nuclear Physics B, 243(1), 173-188. doi:10.1016/0550-3213(84)90392-4.