Number | Name | Date | Kind |
---|---|---|---|
3541020 | Mizuno | Nov 1970 | A |
4663563 | Taya et al. | May 1987 | A |
5858277 | Chau et al. | Jan 1999 | A |
Number | Date | Country |
---|---|---|
47-24353 | Jul 1972 | JP |
Entry |
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G. Blasse and B.C. Grabmaier, “Luminescent Materials”, pp. 114-115, Springer-Verlag (1994). No month. |
K. H. Butler, “Fluorescent Phosphors”, Chapter 3, Penn State Univ. Press (1980). No month. |