1. Introduction;Shionoya,1998
2. History of Phosphor Technology and Industry;Nakajima,1998
3. Arpiarian, N.In The Century of the Discovery of Luminescent Zinc Sulfide, Proceedings if the International Conference of Luminescence, Budapest, Hungary, 1966; Szigeti, G., Ed.; Akade′mia Kiado: Budapest, 1968, p 903.