SKOLICKI, Z. SEMIGROUPS, GROUPS AND GRAMMARINFERENCE PROBLEM. Computer Science, [S. l.], v. 4, n. 1, 2020. DOI: 10.7494/csci.2002.4.1.3598. Disponível em: https://journals.agh.edu.pl/csci/article/view/3598. Acesso em: 4 dec. 2024.