Akkouchi, Mohamed. “A Strict Fixed Point Problem for $\delta$-Asymptotically Regular Multifunctions and Well-Posedness”. Sarajevo Journal of Mathematics 7, no. 1 (June 10, 2024): 123–133. Accessed October 15, 2024. https://sjm.anubih.ba/index.php/sjm/article/view/310.