K. Zaharieva, M. Shipochka, S. Dimova, I. Stambolova, and S. Vassilev, “New Developed (Ag)-La$$_2$$O$$_3$$-Ce$$_4$$O$$_7$$-ZnO Photocatalytic Active Composites for Textile Dyes Degradation”, C. R. Acad. Bulg. Sci., vol. 77, no. 12, pp. 1767–1775, Dec. 2024.