TY  - BOOK
AU  - Yen, William M  .
TI  - Inorganic phosphors: compositions, preparation and optical properties / 
SN  - 0-8493-1949-8
U1  - C 
PY  - 2004///
CY  - Boca Raton : 
PB  - CRC Press , 
KW  - Phosphors-Optical properties
ER  -