The income tax against the principles of irretroactivity and tax previousness: an analysis about summary 584 of the STF. Research, Society and Development, [S. l.], v. 11, n. 6, p. e38811629429, 2022. DOI: 10.33448/rsd-v11i6.29429. Disponível em: https://rsdjournal.org/rsd/article/view/29429. Acesso em: 5 dec. 2025.