Lan, Nguyen, 		Kien, Nguyen, 		Thang, Cao Xuan, AND 		Tung, Nguyen.
" Analysis of the Structure and Luminescence Properties  of Sr3Y2Ge3O12:0.05Eu3+ (SYGO:Eu3+) According  to Judd–ofelt Theory" <em>VNU Journal of Science: Mathematics - Physics</em> [Online], Volume 39 Number 3 (8 August 2023)