Krymus, A.S., Myronchuk, G.L. and Parasyuk, O.V. 2019. Influence of Cu-, Sn-, and in-Doping on Optical Properties of AgGaGe3Se8 Single Crystals. Ukrainian Journal of Physics. 61, 7 (Jan. 2019), 606. DOI:https://doi.org/10.15407/ujpe61.07.0606.