BUNGE R.C.; EL-ZANATI S.I.; HIRSCH M.; KLOPE D.; MUDROCK J.A.; SEBESTA K.; SHAFER B. On labeling 2-regular graphs where the number of odd components is at most 2. Utilitas Mathematica , [S. l.], v. 91, 2013. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/962. Acesso em: 9 jul. 2026.