DYACHENKO, M. I.; NURSULTANOV, Y. D.; ZHANTAKBAYEVA, A. M. Hardy-Littlewood type theorems. Eurasian Mathematical Journal, [S. l.], v. 4, n. 2, p. 140–143, 2013. Disponível em: https://emj.enu.kz/index.php/main/article/view/533. Acesso em: 9 oct. 2025.