Hai, Nguyen Van, 		Anh, Mai, 		Hien, Dinh, AND 		Van, Hoang.
" Synthesis of CeO2:xEu3+, yAl3+ Nanocrystals by Sol-gel Method and Investigation of Their Optical Properties" <em>VNU Journal of Science: Natural Sciences and Technology</em> [Online], (20 April 2026)