Citation: Yvonne Klawitter; Wolfgang Bensch; Claudia Wickleder (2006). Synthesis, Crystal Structure, and Vibrational and Optical Spectroscopy of the First Quaternary Alkaline-Earth Rare Earth Thiophosphates Ba3Ln2[P4S16] (Ln = Gd-Er). Chem. Mater., 18, pp. 187-197.