SAVCHUK, V. V. Best approximations of the Cauchy – Szegö kernel in the mean on the unit circle. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 70, n. 5, p. 708–714, 2018. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1589. Acesso em: 5 dec. 2025.