AGRAWAL, B. D. Theorems on Self-Reciprocal Functions. The Journal of the Indian Mathematical Society, [S. l.], v. 25, n. 2, p. 49–62, 1961. Disponível em: https://www.informaticsjournals.com/index.php/jims/article/view/22049. Acesso em: 6 may. 2024.