Kiss, Éva, and Erzsébet Nedelka. “Geographical Approach of Industry 4.0 Based on Information and Communication Technologies at Hungarian Enterprises in Connection With Industrial Space”. Hungarian Geographical Bulletin 69, no. 2 (June 30, 2020): 99-117. Accessed April 20, 2024. https://ojs3.mtak.hu/index.php/hungeobull/article/view/3191.