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Space shuttle safety hearing before the Subcommittee on Space and Aeronautics of the Committee on Science, House of Representatives, One Hundred Sixth Congress, first session, September 23, 1999
- "Space shuttle safety hearing before the Subcommittee on Space and Aeronautics of the Committee on Science, House of Representatives, One Hundred Sixth Congress, first session, September 23, 1999"@en
- "Space shuttle safety : hearing before the Subcommittee on Space and Aeronautics of the Committee on Science, House of Representatives, One Hundred Sixth Congress, first session, September 23, 1999"@en