Citation: Chernaya, V.V.; Antipov, E.V.; Tsirlin, A.A.; Shpanchenko, R.V.; Hadermann, J.; Gippius, A.A.; Geibel, C.; D'yakov, V.; Morozova, E.N.; Kaul, E.E. (2004). Cryystal structure and properties of the new vanadyl(IV) phosphates Na2 M V O (P O4)2, M = Ca and Sr. Journal of Solid State Chemistry, 177, pp. 2875-2880.