BARATTIERI, V.; RAGAZZI, G. An analysis of the two-tier foreign exchange market. PSL Quarterly Review, [S. l.], v. 24, n. 99, 2014. DOI: 10.13133/2037-3643/12878. Disponível em: https://rosa.uniroma1.it/rosa04/psl_quarterly_review/article/view/12878. Acesso em: 18 may. 2024.