TY  - BOOK
AU  - Dieke,Gerhard Henrich
AU  - Crosswhite,H.M.
TI  - Spectra and Energy Levels of Rare Earth Ions in Crystals
PY  - 1968///
CY  - New York
PB  - Interscience
KW  - Chemistry
KW  - Optic
ER  -