V. Liubachko, A. Oleaga, A. Salazar, A. Kohutych, A. Pogodin, and Yu. Vysochanskii, Investigation of the evolution of thermal properties in ferrielectric CuInP₂S₆ and Ag_0.1Cu_0.9InP₂S₆ layered crystals by means of ac photopyroelectric calorimetry, Low Temp. Phys. 49, (2023) [Fiz. Nyzk. Temp. 49, 580–587, (2023)] DOI: https://doi.org/10.1063/10.0017813.