Livi, S. MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society;
Roeder, J. L., Fennell, J. F., Chen, M. W., Schulz, M., Grande, M., & Livi, S. (1996). CRRES observations of the composition of the ring-current ion populations. Advances in Space Research, 17, 17-24.