GRILLI, Luca. On the NP-hardness of GRacSim drawing and k-SEFE Problems. Journal of Graph Algorithms and Applications, [S. l.], v. 22, n. 1, p. 101–116, 2018. DOI: 10.7155/jgaa.00456. Disponível em: https://jgaa.info/index.php/jgaa/article/view/paper456. Acesso em: 30 jun. 2024.