S. Kranzinger and J. Derndorfer, “The end of the middle class? The development of the income distribution in Austria and Europe”, Momentum Quarterly, vol. 5, no. 3, pp. 121–138, Sept. 2016, Accessed: Feb. 16, 2026. [Online]. Available: https://momentum-quarterly-journal.uibk.ac.at/momentum/article/view/1769