Niekurzak, M. and Kubińska-Jabcoń, E. 2021. Production Line Modelling in Accordance with the Industry 4.0 Concept as an Element of Process Management in the Iron and Steel Industry. Management and Production Engineering Review. 12, 4 (Dec. 2021), 3–12. DOI:https://doi.org/10.24425/mper.2021.139990.