Orbital Energy Differences and Chemical Bonding in Rare EarthsnOptical Spectroscopy of Rare Earth CompoundsnInteractions of Rare Earth Ions with Their Crystalline Environmentsn2, 2'-Dipyridyl Complexes of Rare Earths-II Change in Fluorescence Intensities of Europium and Terbium Chelate on Legend SubstitutionnCoordination and Chemical Equilibrium in Chelate Laser MaterialsnOptimum Activator Concentrations in Rare-Earth OxidenPhosphorsnEfficiency of Eu Fluorescence in Oxygen-Dominated Host LatticesnOn the Enhancement of the Fluorescence of Aqueous Solutions of Neodymium, Samarium and Dysprosium ChloridesnLow-Temperature Optical Studies of Rare-Earth CyclopentadienidesnLocalized H~ Modes in Rare Earth Trifluorides innVeronica Spectran3+ 3+nSpectral Characteristics of Nd and Er Triethylenetetra- minehexaacetic Acid ComplexesnSome Chromomeric Reagents for the LanthanidesnArum K. Dey, Surrender N. Sinhala, Standard P. Sandal
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