Citation: Kim, S.-J.; Martinez-Lope, M.J.; Alonso, J.A.; Fernandez-Diaz, M.T.; Presniakov, I.; Demazeau, G. (2002). Evidence of Ni(III) disproportionation in the Tl Ni O3 perovskite lattice through neutron powder diffraction and Mossbauer spectroscopy. Chemistry of Materials (1,1989-), 14, pp. 4926-4932.