V. V. Gorunovich and A. L. . Rebenko, “Mathematical description of the charged particles system near the surface of the porous membrane ”, Ukr. Mat. Zhurn., vol. 40, no. 1, pp. 114–117, Dec. 1987, Accessed: Dec. 06, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/9067