ARROYO, Alan; FELSNER, Stefan. Approximating the Bundled Crossing Number. Journal of Graph Algorithms and Applications, [S. l.], v. 27, n. 6, p. 433–457, 2023. DOI: 10.7155/jgaa.00629. Disponível em: https://jgaa.info/index.php/jgaa/article/view/paper629. Acesso em: 30 jun. 2024.