Danylyuk, P.S., G.V. Rizak, O.I. Gomonai, P.P. Puga, A.O. Frolov, A.N. Gomonai, and V.M. Rizak. 2024. “Raman Scattering in Glassy Litium Tetraborate Activated With Erbium and Terbium Oxides”. Ukrainian Journal of Physics 69 (6):373. https://doi.org/10.15407/ujpe69.6.373.