Tupko, Olha, Natalia Tupko, and Nataliia Vasil’eva. “Comparison Analysis of Copula-Based and Markowitz Portfolio Methods”. Technology audit and production reserves 4, no. 2(30) (July 26, 2016): 65–72. Accessed May 3, 2024. https://journals.uran.ua/tarp/article/view/75572.