Oja, P., and M. Tarang. “Stability of Piecewise Polynomial Collocation for Volterra integro‐differential Equations”. Mathematical Modelling and Analysis 6, no. 2 (December 15, 2001): 310-320. Accessed April 13, 2024. https://journals.vilniustech.lt/index.php/MMA/article/view/9920.