JAFARI, Morteza; GOLCHIN, Akbar; SAANY, Hossein Mohammadzadeh. ON CHARACTERIZATION OF MONOIDS BY PROPERTIES OF GENERATORS II. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 40, p. 256–276, 2018. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/7031. Acesso em: 17 oct. 2026.