Al-hawasy, Jamil Amir Ali, and Yasameen H. Rashid. “Classical Continuous Boundary Optimal Control Vector Problem for Triple Nonlinear Parabolic System”. Al-Mustansiriyah Journal of Science 34, no. 1 (March 30, 2023): 77–86. Accessed June 30, 2024. https://mjs.uomustansiriyah.edu.iq/index.php/MJS/article/view/1241.