ANDERSON, MARK; BRIGHAM, ROBERT; DUTTON, RONALD D.; VITRAY, RICHARD. Eternal chromatic number. Utilitas Mathematica , [S. l.], v. 94, 2014. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/1085. Acesso em: 8 may. 2026.