SHAIMARDAN, S.; SHALGYNBAEVA, S. Hardy-type inequalities for matrix operators. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 88, n. 4, p. 63–72, 2017. DOI: 10.31489/2017m4/63-72. Disponível em: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/186. Acesso em: 10 jul. 2025.