RASHID, M. M. The Greek letters: Scenario analysis with a reverse butterfly spread. Journal of Economics Bibliography, [S. l.], v. 8, n. 4, p. 185–189, 2022. DOI: 10.1453/jeb.v8i4.2263. Disponível em: https://journals.econsciences.com/index.php/JEB/article/view/2263. Acesso em: 21 dec. 2024.