BACHMAIER, Christian; BRANDENBURG, Franz; BRUNNER, Wolfgang; HÜBNER, Ferdinand. Global k-Level Crossing Reduction. Journal of Graph Algorithms and Applications, [S. l.], v. 15, n. 5, p. 631–659, 2011. DOI: 10.7155/jgaa.00242. Disponível em: https://jgaa.info/index.php/jgaa/article/view/paper242. Acesso em: 30 jun. 2024.