Le, T., N. Nguyen, C. Ngo, C. Nguyen, and T. Tran. “PHOTO-CATALYTIC TRANSPARENT HEAT MIRROR FILM TiO2/TiN/TiO2”. Science and Technology Development Journal, Vol. 12, no. 3, Feb. 2009, pp. 24-32, doi:https://doi.org/10.32508/stdj.v12i3.2216.