1. R. Kane and H.Sell, Revolution in Lamps: A Chronicle of 50 Years of Progress, The Fairmont Press, Inc., 2nd edn, 2001
2. Recherches sur les scintillations des sulfures de zinc aux rayons α
3. J. B. Birks , Photophysics of Aromatic Molecules, Wiley-Interscience, London, 1970
4. S. P. McGlynn , T.Azumi and M.Kinoshita, Molecular Spectroscopy of the Triplet State, Prentice Hall, Engelwood Cliffs, New Jersey, 1969