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References
- ↑ "Titan IVA-20 Accident Investigation Board Summary".
- ↑ "Archived copy". Archived from the original on 2009-05-04. Retrieved 2009-05-04.CS1 maint: archived copy as title (link)
- ↑ Craig Covault and Joseph C. Anselmo (1998-08-17). "Titan explosion destroys secret 'Mercury' sigint". Aviation Week and Space Technology. 149.
