A. Nahornyi and A. Omelchuk, “INFLUENCE OF HETEROVALENT SUBSTITUTION ON THE CONDUCTIVITY OF MxPb1-xSnF4±х AND MxPb0,86-xSn1,14F4±х (M=K, Rb, Nd, Sm) FLUORIDE-CONDUCTING PHASES”, Ukr. Chem. Journ., vol. 91, no. 4, pp. 72–87, May 2025.