FERNANDO, T. On regular languages over power sets. Journal of Language Modelling, [S. l.], v. 4, n. 1, p. 29–56, 2016. DOI: 10.15398/jlm.v4i1.103. Disponível em: https://jlm.ipipan.waw.pl/index.php/JLM/article/view/103. Acesso em: 23 apr. 2024.