Boehnhardt, H. MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society; Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society;
Barucci, M. A., Boehnhardt, H., Cruikshank, D. P., & Morbidelli, A. (2008). The Solar System Beyond Neptune: Overview and Perspectives. In M. A. Barucci, H. Boehnhardt, D. P. Cruikshank, & A. Morbidelli (Eds.), The Solar System Beyond Neptune. Tucson, USA: The University of Arizona Press.