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by United States General Accounting Office
by Valavanis, Kimon P.
by National Academies of Sciences, Engineering, and Medicine; Division on Engineering and Physical Sciences
by Scott, Benjamyn I.
by Office, United States Government Accountability
by United States Congress; United States House of Representatives; Committee on Science
by United States Congress; United States House of Representatives; Committee on Transportation and Infrastructure
by United States Congress; United States Senate; Committee on Commerce
by United States Government Accountability Office
by Office of the Investigator General
