GIRARDI, D. Do financial investors affect the price of wheat?. PSL Quarterly Review, [S. l.], v. 65, n. 260, 2012. DOI: 10.13133/2037-3643/9936. Disponível em: https://rosa.uniroma1.it/rosa04/psl_quarterly_review/article/view/9936. Acesso em: 20 apr. 2024.