Cimen, Erkan, and Kubra Enterili. “A Numerical Approach for Fredholm Delay Integro Differential Equation”. Communications in Mathematics and Applications 12, no. 3 (September 30, 2021): 619–631. Accessed November 22, 2024. http://rgnpublications.com/journals/index.php/cma/article/view/1574.