Tuyen, Vuong, Nguyen Tong, Hieu Le, Cao Dung, and Tran Van. “Investigating the Effect of Synthesis Parameters on the Structure and Upconversion Luminescent Properties of NaYF4:Tm,Yb for Anticounterfeiting Printing Ink”. Science and Technology Development Journal 27, no. 1 (March 31, 2024): 3275-3285. Accessed May 9, 2024. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/4223.