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NASA contests and prizes how can they help advance space exploration? : hearing before the Subcommittee on Space and Aeronautics, Committee on Science, House of Representatives, One Hundred Eighth Congress, second session, July 15, 2004
- "NASA contests and prizes how can they help advance space exploration? : hearing before the Subcommittee on Space and Aeronautics, Committee on Science, House of Representatives, One Hundred Eighth Congress, second session, July 15, 2004"@en
- "NASA contests and prizes : how can they help advance space exploration? : hearing before the Subcommittee on Space and Aeronautics, Committee on Science, House of Representatives, One Hundred Eighth Congress, second session, July 15, 2004"@en