Shamuratov Damir. “Sumudu Decomposition Method for Nonlinear Fractional Volterra Integro-Differential Equations”. Лучшие интеллектуальные исследования 27, no. 1 (August 22, 2024): 127–132. Accessed April 11, 2025. https://web-journal.ru/journal/article/view/7300.