Temirbekov, N.M., and A.K. Turarov. “Variational Method of Numerical Solution of the Inverse Problem of Gas Lift Oil Production Process”. Bulletin of the Karaganda University. Mathematics Series 118, no. 2 (June 30, 2025): 222–240. Accessed July 10, 2025. https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/950.