BACHMAIER, Christian; MATZEDER, Marco. Drawing Unordered Trees on k-Grids. Journal of Graph Algorithms and Applications, [S. l.], v. 17, n. 2, p. 103–128, 2013. DOI: 10.7155/jgaa.00287. Disponível em: https://jgaa.info/index.php/jgaa/article/view/paper287. Acesso em: 30 jun. 2024.