ZHUCHOK, A.V.; PILZ, G.F. New models for some free algebras of small ranks. Carpathian Mathematical Publications, [S. l.], v. 15, n. 1, p. 295–305, 2023. DOI: 10.15330/cmp.15.1.295-305. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/6540. Acesso em: 12 may. 2024.