CHAPLICK, Steven; UECKERDT, Torsten. Planar Graphs as VPG-Graphs. Journal of Graph Algorithms and Applications, [S. l.], v. 17, n. 4, p. 475–494, 2013. DOI: 10.7155/jgaa.00300. Disponível em: https://jgaa.info/index.php/jgaa/article/view/paper300. Acesso em: 30 jun. 2024.