Sputnik (Nov. 15, 1998)

• Memorandum from C.P. Cabell to B.A. Schriever, "Research and Development on Proposed Rand Satellite Reconnaissance Vehicle" (March 17, 1951)
• Memorandum from Ken Mansfield, "Intercontinental Ballistic Rocket Program" (March 27, 1954).
• Report from RAND Corporation, "Recommendation to the Air Staff: An Earlier Reconnaissance Satellite System" (November 12, 1957).
• Memorandum for J.R. Killian, Jr. from President's Science Advisory Committee, Ballistic Missiles Panel, "Whither Ballistic Missile Systems?" (March 4, 1958).
• Letter from J.R. Killian, Jr. to Dwight D. Eisenhower (March 8, 1958).
• Memorandum by A.J. Goodpaster, "Memorandum of Conference with the President March 10, 1958 - 10:20 AM" (March 11, 1958).
• Memorandum from Lawrence McQuade to Paul Nitze, "But Where Did the Missile Gap Go?" (May 31, 1963).