Niewiadomski, M. .; Niemczyk, A.; Gródek-Szostak, Z.; Strojny, J. The Path to Industry 4.0: The Evolution of Industry in the National Economies of the European Union in 2009-2020. IER 2023, 9 (3), 75-89. https://doi.org/10.15678/IER.2023.0903.05.