Zhyhallo, T. V. and Kharkevych, Y. I. (2004) “Approximation of functions defined on the real axis by operators generated by λ-methods of summation of their Fourier integrals”, Ukrains’kyi Matematychnyi Zhurnal, 56(9), pp. 1267-1280. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3840 (Accessed: 7May2024).