TIMAN, M. F.; KHASANOV, Yu. On the absolute summability of Fourier series of almost-periodic besicovitch functions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 61, n. 9, p. 1267–1276, 2009. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3098. Acesso em: 6 dec. 2025.