BYSKOV, J. M. Chromatic Number in Time O(2.4023^n) Using Maximal Independent Sets. BRICS Report Series, [S. l.], v. 9, n. 45, 2002. DOI: 10.7146/brics.v9i45.21760. Disponível em: https://tidsskrift.dk/brics/article/view/21760. Acesso em: 2 feb. 2023.