Gouitaa, N., et al. “Dielectric Anomalies of BaTi1-XFexO3 Ceramics for X = 0.0 to 0.6 of Fe Doping Concentration”. Asian Journal of Chemistry, vol. 29, no. 10, Aug. 2017, pp. 2143-8, doi:10.14233/ajchem.2017.20653.