Citation: E. Le Fur; B. de Villars; J. Tortelier; Y. Pivan (2001). Hydrothermal Synthesis, Thermal, and Magnetic Data on New Alkaline Vanadium Phosphate My(VO)9+x(PO4)4x(HPO4)12-4x with M = Cs+ (y = 5.29, x = 1) and M = NH4+, Rb+ (y ~ 5, x ~ 1). Inorganic Chemistry, 40, pp. 272-276.