Adamov, A. N. (2009) “Inequality of the Turan type for trigonometric polynomials and conjugate trigonometric polynomials in $L_0$”, Ukrains’kyi Matematychnyi Zhurnal, 61(7), pp. 986-995. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3073 (Accessed: 22February2024).