1. Jane’s Space Systems & Industry, IHS Jane’s (various editions), editor, Peter Bond
2. Orbiting Solar Observatory: https://en.wikipedia.org/wiki/Orbiting_Solar_Observatory
3. National Space Science Data Coordinated Archive, Master Catalog: https://nssdc.gsfc.nasa.gov/
4. OSO series: https://solarscience.msfc.nasa.gov/OSO.shtml
5. High Energy Astrophysics group, Center for Astrophysics and Space Sciences (CASS), Missions and Projects: https://cass.ucsd.edu/heag/OSO-1_Mission_Objectives.html