JÜNGER, Michael; LEIPERT, Sebastian. Level Planar Embedding in Linear Time. Journal of Graph Algorithms and Applications, [S. l.], v. 6, n. 1, p. 67–113, 2002. DOI: 10.7155/jgaa.00045. Disponível em: https://jgaa.info/index.php/jgaa/article/view/paper45. Acesso em: 30 jun. 2024.