GROSS, F. Entire Solutions of the Functional Equation α(βγ()) = α(γ(2)) + C. The Journal of the Indian Mathematical Society, [S. l.], v. 32, n. 3-4, p. 199–206, 1968. DOI: 10.18311/jims/1968/16768. Disponível em: http://informaticsjournals.com/index.php/jims/article/view/16768. Acesso em: 3 may. 2024.