Wilken, B. MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society;
Fennell, J. F., Roeder, J. L., Grande, M., & Wilken, B. (1996). Oxygen charge state abundance in the inner magnetosphere. In G. D. Reeves (Ed.), Workshop on the Earth's Trapped Particle Environment, Taos/NM USA 1996 (pp. 145-150). Woodbury, New York: AIP Conference Proceedings 383.