Mei, Shi-Gang, Jian-Lei Wang, Kang Yong, Guang-Lei Zhang, and Yuan-Qing Li. 2012. “Preparation and Characterization of Gallium Doped ZnO Epoxy Composite As Thermal-Insulating Coating”. Asian Journal of Chemistry 24 (5):2210-12. https://asianpubs.org/index.php/ajchem/article/view/8981.