Piotr Rejnhardt and Marek Daszkiewicz, Anisotropy of thermal expansion and compressibility of non-centrosymmetric (H₃AmGP)SiF₆, Low Temp. Phys. 49, (2023) [Fiz. Nyzk. Temp. 49, 345–350, (2023)] DOI: https://doi.org/10.1063/10.0017242.