Pichugov, S.A. (2011) “Inequalities for trigonometric polynomials in spaces with integral metric”, Ukrains’kyi Matematychnyi Zhurnal, 63(12), pp. 1657–1671. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/2832 (Accessed: 26 April 2025).