A. Pryshko, I. S. Novosad, Z. O. Kohut, V. M. Salapak, and O. M. Horina, Dilatometric and refractive parameters of rubidium sulfate crystals at low temperatures, Low Temp. Phys. 50, 584–588, (2024) [Fiz. Nyzk. Temp. 50, 649–654, (2024)] DOI: https://doi.org/10.1063/10.0026324.