“Existence of Solutions for Nonlocal Semilinear Fractional Integro-Differential Equation With Krasnoselskii-Krein-Type Conditions”. Nonlinear Studies 19, no. 3 (August 24, 2012). Accessed October 4, 2025. https://www.nonlinearstudies.com/index.php/nonlinear/article/view/471.