I. L. Nizhnik and L. P. Nizhnik, “Deterministic diffusion”, Ukr. Mat. Zhurn., vol. 71, no. 11, pp. 1553–1569, Nov. 2019, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1535