Ruamnikhom, R., P. Yasaka, and J. Kaewkhao. “Physical and Optical Properties of Dy3+ Bismuth Barium Borate Glasses”. Interdisciplinary Research Review, vol. 12, no. 5, Feb. 2018, pp. 1-4, https://ph02.tci-thaijo.org/index.php/jtir/article/view/78458.