Karaduman Y, Demir A, Öztürk T, Gül B. Investigation of Structural, Optical and Photocatalytic Properties of Holmium–Niobium Co-doped TiO2 Nanopowders. Acta Phys. Pol. A [Internet]. 2023 Jan. 31 [cited 2024 May 14];143(1):75. Available from: http://appol.ifpan.edu.pl/index.php/appa/article/view/143_75