SERDYUK, A. S. Approximation of Periodic Analytic Functions by Interpolation Trigonometric Polynomials in the Metric of the Space $L$. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 54, n. 5, p. 692–699, 2002. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4108. Acesso em: 14 apr. 2025.