Experimental study of the structural, microscopy and magnetic properties of Ni-doped SnO2 nanoparticles - Herrera Aragón, Fermin Fidel; Coaquira, José Antonio Huamaní; Hidalgo, Pilar; Brito, S. L. M.; Gouvêa, Douglas; Castro, Ricardo Hauch Ribeiro de (Journal of Non-Crystalline Solids, 2010)