“Three-operator Problems in Banach Spaces: doi:10.17398/2605-5686.33.2.149”, Extr. Math., vol. 33, no. 2, p. 149–165, Dec. 2018, Accessed: Dec. 22, 2024. [Online]. Available: https://revista-em.unex.es/index.php/EM/article/view/2605-5686.33.2.149