Lopyanko, M. A., S. I. Mudri, S. V. Optasyuk, T. O. Semko, Т. С. Люба, G. D. Mateik, I. V. Gorichok, and Ya. S. Jaworski. 2016. “The Thermoelectric Properties of Silver Doped of Lead Telluride”. Physics and Chemistry of Solid State 17 (2):188-92. https://doi.org/10.15330/pcss.17.2.188-192.