1. Herschel, W.: Experiments on the refrangibility of the invisible rays of the Sun. Phil. Trans. R. Soc. Lond. 90, 284–292 (1800)
2. Holden, E.S.: Sir William Herschel His Life and Works (2009).
3. Coblentz, W.W.: Investigations of Infra-Red Spectra. Carnegie Institution of Washington, Washington, DC (1905)
4. Lin-Vien, D., Colthup, N.B., Fateley, W.G., Grasselli, J.G.: The Handbook of Infrared and Raman Characteristic Frequencies of Organic Molecules. Academic Press, San Diego (1991).
5. PerkinElmer: 60 Years of Innovation in Infrared Spectroscopy. PerkinElmer, Shelton (2005).