Li, Zi-Rong, and Guo-Jun Cheng. “Hydrothermal Synthesis and Characterization of Flower-Like SnO2-Zn2SnO4 Nanocomposites”. Asian Journal of Chemistry, vol. 25, no. 10, May 2013, pp. 5555-7, doi:10.14233/ajchem.2013.OH16.