BELKE, A.; BERETTA, E. From cash to private and public digital currencies. The risk of financial instability and “modern monetary Middle ages”. Economics and Business Letters, [S. l.], v. 9, n. 3, p. 189–196, 2020. DOI: 10.17811/ebl.9.3.2020.189-196. Disponível em: https://reunido.uniovi.es/index.php/EBL/article/view/14743. Acesso em: 26 apr. 2024.