K. N. Ganesha, H. Chandrappa, S. R. Kumaraswamy, V. Annadurai, H. Somashekarappa, and R. Somashekar, “Synthesis, Characterization and Impedance Analysis of CalciumDoped Zinc Oxide Nanoparticles”, non-met. mater. sci., vol. 5, no. 1, pp. 49–63, Apr. 2023.