MAGRUDER, Daniel Summer; BONN, Stefan. Root demotion: efficient post-processing of layered graphs to reduce dummy vertices for hierarchical graph drawing. Journal of Graph Algorithms and Applications, [S. l.], v. 21, n. 6, p. 1027–1038, 2017. DOI: 10.7155/jgaa.00448. Disponível em: https://jgaa.info/index.php/jgaa/article/view/paper448. Acesso em: 30 jun. 2024.