YUANSHENG, YANG; WEIMING, LU; QINGSHUANG, ZENG. Harmonious graphs C2k ∪ C2j+1. Utilitas Mathematica , [S. l.], v. 62, 2002. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/242. Acesso em: 8 may. 2026.