Torre, Nuno, Cicero Leo, and Andrei Bonamigo. “Lean 4.0: An Analytical Approach for Hydraulic System Maintenance in a Production Line of Steel Making Plant”. International Journal of Industrial Engineering and Management 14, no. 3 (September 12, 2023): 186–199. Accessed November 24, 2024. http://sp.ftn.uns.ac.rs/index.php/ijiem/article/view/23.