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- [3] Boeing adds to Delta 4 launch line Aviation Week and Space Technology (New York), 1998, 149 (12):
- [6] Boeing, Khrunichev to launch second FGB module Aviation Week and Space Technology (New York), 2000, 153 (05):
- [9] Boeing moves ahead with sea launch venture AVIATION WEEK & SPACE TECHNOLOGY, 1996, 144 (01): : 26 - 26
- [10] Virgin, Boeing pursue sonic cruiser launch possibility Aviation Week and Space Technology (New York), 2001, 154 (20):