ARGYRIOU, Evmorfia; BEKOS, Michael; KAUFMANN, Michael; SYMVONIS, Antonios. On Metro-Line Crossing Minimization. Journal of Graph Algorithms and Applications, [S. l.], v. 14, n. 1, p. 75–96, 2010. DOI: 10.7155/jgaa.00199. Disponível em: https://jgaa-v4.cs.brown.edu/index.php/jgaa/article/view/paper199. Acesso em: 22 dec. 2024.