BEREND, Daniel; ZUCKER, Shira. The Black-and-White Coloring Problem on Trees. Journal of Graph Algorithms and Applications, [S. l.], v. 13, n. 2, p. 133–152, 2009. DOI: 10.7155/jgaa.00180. Disponível em: http://jgaa-v4.cs.brown.edu/index.php/jgaa/article/view/paper180. Acesso em: 6 jul. 2024.