1. A narrow-beam antenna array for radio wave absorption studies in the auroral zone;Ansari,1965
2. A D-region sunrise auroral rocket flight;Armstrong;J. atmos. terr. Phys.,1970
3. A comparison of the latitudinal variation of auroral absorption at different longitudes;Berkey;J. atmos. terr. Phys.,1973
4. A synoptic investigation of particle precipitation dynamics for 60 substorms;Berkey,1974
5. A review of photodetachment and related negative ion processes relevant to aeronomy;Branscomb;Ann. Geophys.,1964