T. EL BOUAYACHI; N. YEBARI. Indefinitely oscillating functions-Part II. International Journal of Mathematics And its Applications, [S. l.], v. 4, n. 2 - A, p. 103–109, 2016. Disponível em: https://ijmaa.in/index.php/ijmaa/article/view/1012. Acesso em: 3 jul. 2024.