Ćirić, Aleksandar, Mina Medić, Jovana Periša, Željka Antić, and Miroslav Dramićanin. “Luminescence Intensity Ratio by Three Thermalized Levels in YAG:Er3+ Yb3+ Nanoparticles: Original Scientific Paper”. HEMIJSKA INDUSTRIJA (Chemical Industry) (October 21, 2024). Accessed December 3, 2024. https://www.ache-pub.org.rs/index.php/HemInd/article/view/1230.