PAPINI, P. L. Rascal finite sets. Tamkang Journal of Mathematics, [S. l.], v. 35, n. 4, p. 351–358, 2004. DOI: 10.5556/j.tkjm.35.2004.193. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/193. Acesso em: 4 may. 2024.