Saini, Parvesh, and Rajesh Kumar. “Design and Analysis of Robust Multivariable PI Controller for Paper Machine Headbox Using Particle Swarm Optimisation”. Journal of Graphic Era University 7, no. 2 (February 28, 2023): 132–152. Accessed November 23, 2024. https://riverpublishersjournal.com/index.php/JGEU/article/view/60.