Smenteck, Lidia Optical spectroscopy of lanthanides: magnetic and hyperfine interactions Brian G. Wybourne and Lidia Smentek - London: CRC Press 2007 - [xvii], 333p.: ill. ISBN: 084937264X Subjects--Topical Terms: RARE EARTHMETALS--SPECTRAPHYSICSIONS--SPECTRASPECTRUM ANALYSIS LC Class. No.: QC 462.R2 Wyb