TY  - BOOK
AU  - Reisfeld, Renata
AU  - Jorgensen, Christian K.
TI  - LASER'S AND EXCITED STATES OF RARE EARTHS
U1  - 535.58 
PY  - 1977///
CY  - Berlin
PB  - Springer-Verlag
KW  - Rare Earth Lasers
KW  - Earths, Rare -- Spectra
ER  -