Tudor, Cristiana Doina, Alexandra Horobet, Zeno Dinca, Lucian Belascu, and Robert Sova. “Investment Implications of Industry 4.0: Evidence from Smart Manufacturing ETFs”. Journal of Business Economics and Management 27, no. 1 (February 10, 2026): 74–93. Accessed February 20, 2026. https://journals.vilniustech.lt/index.php/JBEM/article/view/25512.