TY  - RPRT
TI  - Phosphors with long-persistent green phosphorescence
AU  - Yen, William M
AU  - Jia, Weiyi
AU  - Lu, Lizhu
AU  - Yuan, Huabiao
PY  - 2001
UR  - https://ntrs.nasa.gov/citations/20080004883
ID  - 20080004883
ER  -