PUNNIAKRISHNAN, K. AN IMPROVEMENT ON AN APPROXIMATE FUNCTIONAL EQUATION FOR e^iθ H(1/2+it). International Journal of Mathematical Archive, [S. l.], v. 9, n. 1, 2018. Disponível em: http://www.ijma.info/index.php/ijma/article/view/5329. Acesso em: 19 may. 2026.