GRANNELL M.J.; GRIGGS T.S.; STANTON R.G. Bounds on g(5)1(v) for v = 9,13,17 (mod 20). Utilitas Mathematica , [S. l.], v. 78, 2009. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/637. Acesso em: 8 may. 2026.