Röttger, J. MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society;
Röttger, J. (1999). Incoherent scatter and MST radar observations for studies of the arctic middle atmosphere. In Proc. Int. Workshop on the Arctic Atmosphere Observation, 15-17 December 1998, Tokyo (pp. 129-136). Tokyo, Japan: Communications Resarch Laboratory.