A. O. Danylyuk, “Boundary-value problem for a parabolic system of integro-differential equations with integral conditions”, Ukr. Mat. Zhurn., vol. 60, no. 12, pp. 1610 – 1618, Dec. 2008, Accessed: Apr. 09, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3275