MASHBURN J.L.; HAYNES T.W.; HEDETNIEMI S.M.; HEDETNIEMI S.T.; SLATER P.J. Differentials in graphs. Utilitas Mathematica , [S. l.], v. 69, 2006. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/443. Acesso em: 8 may. 2026.