ZAINULINOVA GULDANA TLEKOVNA. Portfolio Optimization of BRICS Nations’ Currencies (Brazil, Russia, India, China, South Africa) and Their Regional Allies. Progress in Science, [S. l.], n. 4, 2023. Disponível em: https://ojs.scipub.de/index.php/PS/article/view/2470. Acesso em: 21 jul. 2026.