Title: Energy level schemes of fN electronic configurations for the di- tri-, and tetravalent lanthanides and actinides in a free state
Authors: C.-G. Ma, M.G.Brik, D.-X.Liu, B.Feng, YaTian, A.Suchocki
Journal: J. Luminescence
Publication type: article
DOI: 10.1016/j.jlumin.2015.07.053