Vdovych, A.S., I.R. Zachek, and R.R. Levitskii. 2021. “Influence of the Stresses σ5 and σ6 and the Electric Field E1 on the Thermodynamic Parameters of GPI Ferroelectric”. Ukrainian Journal of Physics 66 (1):69. https://doi.org/10.15407/ujpe66.1.69.