Romaniv, I., B. Kuzhel, L. Romaka, and V. Pavlyuk. 2018. “Electrical Transport Properties of R3Ag4Sn4 (R = Gd, Tb, Dy, Ho) Compounds”. Physics and Chemistry of Solid State 19 (4):316-21. https://doi.org/10.15330/pcss.19.4.316-321.