GANAPATHY IYER, V. On a Functional Equation. The Journal of the Indian Mathematical Society, [S. l.], v. 20, n. 1-3, p. 283–290, 1956. DOI: 10.18311/jims/1956/16994. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/16994. Acesso em: 3 may. 2024.