DYACHENKO, M. I.; TIKHONOV, S. Y. Trigonometric series with lacunary-monotone coefficients. Eurasian Mathematical Journal, [S. l.], v. 3, n. 2, p. 31–52, 2012. Disponível em: https://emj.enu.kz/index.php/main/article/view/791. Acesso em: 9 oct. 2025.