• 5 Verona Shelving Facility

• 3 Astronomy
• 3 Astrophysics
• 3 Tracking
• 1 International Geophysical Year, 1957-58
• 1 Ionospheric research
• 1 Observations
• 1 Space flight

• 3 Smithsonian Astrophysical Observatory
• 1 Akademii︠a︡ nauk SSSR. Astronomicheskiĭ sovet
• 1 IGY World Data Center A: Rockets and Satellites
• 1 Ri︠a︡zanskiĭ gosudarstvennyĭ pedagogicheskiĭ institut

• 4 English
• 1 Russian

• 3 Observations

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