Jonkisz-Zacny, Anna. “An Increase in the Value and Productivity of Tangible Fixed Assets As a Factor in Balancing Economic Inequalities”. Social Inequalities and Economic Growth 4, no. 48 (November 13, 2020): 140–154. Accessed December 5, 2025. https://journals.ur.edu.pl/nsawg/article/view/1261.