Front Cover: Heterometallic [Cu2Ln3] (Ln = DyIII, GdIII and HoIII) and [Cu4Ln2] (Ln = DyIII and HoIII) Compounds: Synthesis, Structure, and Magnetism (Eur. J. Inorg. Chem. 8/2017). Issue 8 (17th February 2017)