A. A. Kvasov and V. F. Piven, “Mathematical modeling of pollution monitoring in non-homogeneous layers of soil and operation of a water intake without pollution”, Экологический вестник научных центров ЧЭС, no. 3, pp. 47–56, Sep. 2004, Accessed: Dec. 06, 2025. [Online]. Available: https://vestnik.kubsu.ru/article/view/53