“Some Fixed Point Theorems of Leggett–Williams Type for Multivalued Mappings and Applications to Second-Order Differential Inclusions”. Electronic Journal of Applied Mathematics 3, no. 2 (June 20, 2025): 16–29. Accessed January 1, 2026. https://ejamjournal.com/index.php/ejam/article/view/ejam.202532104.