<i>M</i> <sup>+</sup> <i>M</i> <sup>3+</sup> <sub>2</sub>As(HAsO<sub>4</sub>)<sub>6</sub> (<i>M</i> <sup>+</sup> <i>M</i> <sup>3+</sup> = TlGa, CsGa, CsAl): three new metal arsenates containing AsO<sub>6</sub> octahedra
Acta crystallographica. Section E, Crystallographic communications