L. Hrytsak, B. Turko, V. Vasil’ev, Y. Eliyashevskyy, A. Kostruba, and A. Hrytsak, “Effect of yttrium doping on the photocatalytic properties of ZnO thin films”, Phys. Chem. Sol. State, vol. 24, no. 3, pp. 422–428, Sep. 2023.