Tömöri, Gergő, and György Csontos. “The Impact of Energy Crisis on Variance- and Gini-Optimized Portfolio Structures – Case of Hungary”. Economica 16, no. 1-2 (January 24, 2025): 1–13. Accessed December 5, 2025. https://ojs.lib.unideb.hu/economica/article/view/14379.