Black hole lensing in Kerr-de Sitter spacetimes Eunice Omwoyo, Humberto Belich, Júlio C. Fabris and Hermano Velten Eur. Phys. J. Plus, 138 11 (2023) 1043 Published online: 26 November 2023 DOI: 10.1140/epjp/s13360-023-04692-w