TEAM, S. Chromatic Numbers of Suborbital Graphs for Some Hecke Groups: Woratham Khangtragool, Khuanchanok Chaichana. Thai Journal of Mathematics, [S. l.], v. 19, n. 2, p. 725–738, 2021. Disponível em: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1191. Acesso em: 3 jul. 2024.