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- United States. National Aeronautics and Space Administration140
- Langley Research Center95
- Lewis Research Center59
- United States31
- Zaretsky, Erwin V.29
- United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch24
- Halford, Gary R.16
- ebrary, Inc16
- U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering15
- Argonne National Laboratory14
- Newman, J. C.13
- U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering Technology13
- University of Illinois at Urbana-Champaign13
- Chopra, O. K.12
- Parker, Richard J. (Richard Jay), 1937-12
- United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Aviation12
- Townsend, Dennis P.10
- Gangloff, R. P.9
- United States. National Aeronautics and Space Administration. Scientific and Technical Information Office9
- Crews, John H.8