Karzhaubayev, K. K. (2016) “Modeling oil pollution of the Caspian Sea resulting from the Ural and Volga rivers input”, International Journal of Mathematics and Physics, 7(2), pp. 30–35. Available at: https://ijmph.kaznu.kz/index.php/kaznu/article/view/201 (Accessed: 23 November 2024).