“Mathematical modeling of the process of using biogas produced in the processing of the leachate from the Galati - Tirighina waste deposits”, Ann_UGAL_Math_Phys_Mec, vol. 40, no. 1, pp. 113–118, Jun. 2017, Accessed: Nov. 02, 2026. Available: https://ojs.ugal.ro/index.php/math/article/view/1267