Citation: Becker, Richard; Johnsson, Mats; Kremer, Reinhard K; Klauss, Hans-Henning; Lemmens, Peter (2006). Crystal structure and magnetic properties of FeTe2O5X (X=Cl, Br): a frustrated spin cluster compound with a new Te(IV) coordination polyhedron.. Journal of the American Chemical Society, 128, pp. 15469-15475.