1. Applied Infrared Spectroscopy;Kendall,1970
2. Teledection des pollutants gasseoux de l’atmosphere;Haulet;Bull. Inform. Sci. ez Techn.,1978
3. Electronic Spectrum and Structure of the Multi-atomic Molecules;Gerztberg,1969
4. V. Goldovsky, Correlational gas analyzer, United States Patent # 4964 725, Oct. 23, 1990.
5. Technique and Practice of the Spectroscopy;Zaydel,1976