1. Coordinated Measurements on Auroras;Evans,1965
2. Longitudinal Variations of High Energy Electrons at Low Altitudes;Imhof;J. Geophys. Res.,1965
3. Opening the Cold War sky to the public: declassifying satellite reconnaissance imagery;McDonald;Photogrammetric Engineering & Remote Sensing,1995
4. CORONA: Success for space reconnaissance, a look into the Cold War, and a revolution for intelligence;McDonald;Photogrammetric Engineering and Remote Sensing,1995
5. The First Soviet Spy Satellite;Oberg,1995