EPPSTEIN, David. Finding Large Clique Minors is Hard. Journal of Graph Algorithms and Applications, [S. l.], v. 13, n. 2, p. 197–204, 2009. DOI: 10.7155/jgaa.00183. Disponível em: https://jgaa.info/index.php/jgaa/article/view/paper183. Acesso em: 30 jun. 2024.