O. A. Kapustyan and A. V. Sukretna, “Approximate Averaged Synthesis of the Problem of Optimal Control for a Parabolic Equation”, Ukr. Mat. Zhurn., vol. 56, no. 10, pp. 1384–1394, Oct. 2004, Accessed: Apr. 13, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3851