Citation: M. Hilbers et al., POLYNUCLEAR COMPLEXES OF OXO-VANADIUM AND OXO-MOLYBDENUM WITH THE DIANION OF SQUARIC ACID AS BRIDGING LIGAND - CRYSTAL-STRUCTURES OF [C(NH2)(3)](4)[V2O2F4(C4O4)(2)]CENTER-DOT-4H(2)O, [(N)BU(4)N](4)[V3O3F4(C4O4)(3)]CENTER-DOT-2H(2)O, [ET(4)N](3)[MO3O8F(C4O4)(2)], [ET(4)N](4)[MO4O10F6(C4O4)] AND [ET(4)N](3)[MO2O3CL3(C4O4)(2)], Zeitschrift fur Naturforschung. B, A journal of chemical sciences, 51(1), 1996, pp. 57-67