S. Y. Makhno, “$G$-convergence of parabolic operators and weak convergence of solutions of diffusion equations”, Ukr. Mat. Zhurn., vol. 45, no. 11, pp. 1534–1541, Nov. 1993, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/5960