BUSAROVA, T. N. Optimal renewal of definite integrals of monotone functions from the class $H^{ω}$. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 49, n. 8, p. 1011–1015, 1997. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5095. Acesso em: 5 dec. 2025.