Czechowsky, P. MPI for Aeronomy, Max Planck Institute for Solar System Research, Max Planck Society;
Waterman, A. T., & Czechowsky, P. (1983). Upper tropospheric structures with VHF radar at Arecibo. In Proc. URSI Commission F 1983 Symposium (pp. 89-94). Noordwijk: ESA Publ. Div.