ROMANYUK, A. S. The School: “Fourier Series: Theory and Applications”. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 45, n. 6, p. 879, 1993. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5830. Acesso em: 11 apr. 2025.