References

Primary/Dominant Sources (by interview, email, phone discussions):

• Larry Bloom
• Lawrence Cotter
• John Estes
• Terry Miller
• Ken Needham
• Eric Nelson
• Les Nelson
• Warren Pearce
• Rick Sturdevant
• Thomas S. Moorman, Jr
• G. Wesley Clark

Secondary Sources include but are not limited to:

• Wikipedia
• Orbital Futures
• GPS Declassified
• Beyond Horizons
• AFSPC Historians Office
• Google Search + various internet sources on the public domain