NAKPRASIT, K.; IEOSANURAK, W. Minimum Number of Edges whose Removal Gives a Planar Graph. KKU Science Journal, [S. l.], v. 42, n. 1, p. 248–261, 2014. Disponível em: https://ph01.tci-thaijo.org/index.php/KKUSciJ/article/view/249258. Acesso em: 26 aug. 2026.