Tovt, Valeria, Igor Barchiy, Michal Piasecki, Iwan Kityk, and Anatolii Fedorchuk. 2017. “ Investigations of the TlInP2Se6–In4(P2Se6)3 System and Its Optical Properties ”. Hungarian Journal of Industry and Chemistry 45 (2):13-18. https://doi.org/10.1515/hjic-2017-0014.