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3. H.W. Lefevre, R.J. Rasmussen, M.S. Chmelik, R.M.S. Schofield, G.E. Sieger, J.C. Overley, Using a fast-neutron spectrometer to candle luggage for hidden explosives, in: George Vourvopolis (Ed.), International Conference: Neutrons in Research and Industry, Proc. SPIE, Vol. 2867, 1997, p. 206.
4. J.C. Overley, M.S. Chmelik, R.J. Rasmussen, G.E. Sieger, R.M.S. Schofield, H.W. Lefevre, Results of tests for explosives in luggage from fast-neutron time-of-flight measurements, in: George Vourvopolis (Ed.), International Conference: Neutrons in Research and Industry, Proc. SPIE, Vol. 2867, 1997, p. 219.
5. M.S. Chmelik, R.J. Rasmussen, R.M.S. Schofield, G.E. Sieger, H.W. Lefevre, J.C. Overley, Curtis J. Bell, FAA Report No. DOT/FAA/AR-97/61, 1997. Papers contained in this report are also contained in “Proceedings of the Second Explosives Detection Technology Symposium and Aviation Security Technology Security Conference”, W.H. Makky, Conference Chairman, Washington, DC, Federal Aviation Administration, unpublished, 1997.