PARNAMI, J. C.; AGRAWAL, M. K.; RAJWADE, A. R. Some Identities Involving Character Sums and their Applications. The Journal of the Indian Mathematical Society, [S. l.], v. 54, n. 1-4, p. 125–132, 1989. Disponível em: http://informaticsjournals.com/index.php/jims/article/view/21879. Acesso em: 28 apr. 2024.