“Degree of Approximation of Lipschitz Function By (C, 1) (e, c) Means of its Fourier Series” (2011) Journal of International Academy of Physical Sciences, 15(5), pp. 83–94. Available at: http://www.iaps.org.in/journal/index.php/journaliaps/article/view/617 (Accessed: 23 October 2026).