Albertsson, Jorgen. The crystal and molecular structure of monoclinic trisodium tris (pyridine-2, 6-dicarboxylato) ytterbiumate (III) 13-hydrate. - Lund : University of Lund. - Structural studies on the rare earth carboxylates ; no. 10 . Subjects--Topical Terms: Earths, Rare.