B. O. Seredyuk, M. S. Karkulovska, N. K. Tovstyuk, and O. Y. Mykytiuk, Dielectric properties of layer crystals and nanostructures based on them , Low Temp. Phys. 52, (2025) [Fiz. Nyzk. Temp. 52, 218–222, (2025)].