LI, X.; PÉREZ-GONZÁLEZ, F.; RÄTTYÄ, J. Composition operators in hyperbolic Q-classes. Annales Fennici Mathematici, [S. l.], v. 31, n. 2, p. 391–404, 2006. Disponível em: https://afm.journal.fi/article/view/135167. Acesso em: 16 may. 2024.