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2. T.P. Griffin, G.R. Naylor, C. Mizell, A multiple detector sample system for remote gas monitoring, NASA Technical Briefs, 1999.
3. G.R. Naylor, R. Hritz, T. Greenfield, C. Lampkin, F.L. Luaces, L. Lingvay, G.S. Breznik, Hydrogen Umbilical Mass Spectrometer, NASA New Technical Report, 1999.
4. T.P. Griffin, G.R. Naylor, L. Lingvay, F.W. Adams, C. Mizell, Portable Aft Mass Spectrometer, NASA Technical Briefs, 1999.
5. HGDS 2000 Fabrication and Assembly Documentation (Drawing Tree), KSC-SK-2000–3480, NASA, Kennedy Space Center, March 2002.