1. U.S. Patent 3,194,110;Eppig;Method of detecting oxygen contaminant in sealed envelopes,1965
2. Detection with atomic nitrogen;Krugers,1965
3. Appraisal of incandescent lamp filling gas purity;Eppig;J. Illumin. Eng. Soc.,1982
4. Kinetics of reactions involving CN emission;Setser,1965
5. Spectra of afterglows and discharges from nitrogen-oxygen mixtures;Kurzweg;J. Molec. Spectrosc.,1957