MAHJOOB, R.; VOUGIOUKLIS, T. APPLICATIONS OF THE UNITING ELEMENTS METHOD. Italian Journal of Pure and Applied Mathematics, [S. l.], v. 36, p. 23–34, 2016. Disponível em: https://journals.uniurb.it/index.php/ijpam/article/view/6657. Acesso em: 5 sep. 2026.