MORGAN, Kerri; FARR, Graham. Approximation Algorithms for the Maximum Induced Planar and Outerplanar Subgraph Problems. Journal of Graph Algorithms and Applications, [S. l.], v. 11, n. 1, p. 165–193, 2007. DOI: 10.7155/jgaa.00141. Disponível em: https://jgaa.info/index.php/jgaa/article/view/paper141. Acesso em: 30 jun. 2024.