Iryna Doroshenko, Nataliya Berezovska, and Tetiana Gavrilko, XXVI Galyna Puchkovska International School-Seminar “Spectroscopy of Molecules and Crystals”, Low Temp. Phys. 51, 155–156, (2025) [Fiz. Nyzk. Temp. 51, 171-172, (2025)] DOI: https://doi.org/10.1063/10.0034895.