1. NASA Technical Reports Server (NTRS). Publication/Creation: [Washington, D.C.] : [U.S. National Aeronautics and Space Administration] Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
2. NASA video catalog Author/Creator: United States. National Aeronautics and Space Administration Publication/Creation: [Hampton, Va.] : National Aeronautics and Space Administration, Langley Research Center, Scientific and Technical Information Program Office Resource Type: Journal, Newspaper or Serial Access & Availability: Loading