Citation: G. Sazani et al., Organotin derivatives of alpha-[X(III)W9O33](9-) (X = AS, Sb) heteropolytungstates. Solution- and solid-state characterization of [{(C6H5Sn)(2)O}(2)H(alpha-AsW9O33)(2)](9-) and [(C6H5Sn)(3)Na-3(alpha-SbW9O33)(2)](6-), INORG CHEM, 39(5), 2000, pp. 939-943