Halyan V, Ivashchenko I, Kevshyn A, Olekseyuk I, Tishchenko P. Photoluminescence of Erbium-Doped Glasses 70 Ga2S3 – 30 La2S3. Phys.Chem.Sol.State [Internet]. 2018 Dec. 25 [cited 2024 Oct. 14];19(4):331-5. Available from: https://ktipe.pnu.edu.ua/index.php/pcss/article/view/586