CHARTRAND, GARY; SABA, FARROKH; SALEHI, EBRAHIM; ZHANG, PING. Local colorings of graphs. Utilitas Mathematica , [S. l.], v. 67, 2005. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/383. Acesso em: 8 may. 2026.