HEDETNIEMI, JASON T.; HEDETNIEMI, SANDRA M.; LEWIS, THOMAS M. Classifying graphs by degrees. Utilitas Mathematica , [S. l.], v. 104, 2017. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/1200. Acesso em: 7 may. 2026.