Schlegel, K. MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society;
Haldoupis, C., Schlegel, K., & Farley, D. T. (1996). On midlatitude ionospheric E region type 1 echoes. In K. Schlegel (Ed.), Plasma Instabilities in the Ionospheric E-Region. Proc. of Workshop in Katlenburg-Lindau 1995 (pp. 39-42). Göttingen: Cuvillier.