Нооshmаnd М. Н. Functions of ultraexponential and infralogarithm types and general solution of the Abel functional equation. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 63, n. 2, p. 281–288, 2011. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2716. Acesso em: 27 apr. 2025.