VLASYK, H. M. Bernstein – Nikol’skii-type inequalities for trigonometric polynomials with an arbitrary choice of harmonics. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 69, n. 2, p. 147–156, 2017. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1683. Acesso em: 5 dec. 2025.