I. Horichok, L. Nykyruy, T. Semko, Lopуanko M., O. Sokolov, and M. Galushchak, “Structure and Properties of Materials on the Basis of Ag-Pb-Sb-Te with High Thermоelectric Figure of Merit”, Phys. Chem. Sol. State, vol. 17, no. 1, pp. 114–128, Mar. 2016.