SAMPSON, M. I. .; ABUBAKAR, R. B. .; AWAD, M. M. .; GEORGE, R. Algebraic Semigroups of Multiple-State Optimal Design Problems. Contemporary Mathematics , [S. l.], v. 7, n. 3, p. 2885–2903, 2026. DOI: 10.37256/cm.7320269015. Disponível em: https://ojs.wiserpub.com/index.php/CM/article/view/9015. Acesso em: 5 may. 2026.