GRONAU, Detlef; SABLIK, Maciej. A functional equation arising from an asymptotic formula for iterates. Annales Mathematicae Silesianae, [S. l.], v. 8, p. 173–187, 1994. Disponível em: https://journals.us.edu.pl/index.php/AMSIL/article/view/14233. Acesso em: 18 apr. 2025.