Ray, B. K. (1975) “On the Summ Ability (R, log n, 1) of a Sequence Associated with Fourier Coefficients”, The Journal of the Indian Mathematical Society, 39(1-4), pp. 309–313. Available at: https://informaticsjournals.com/index.php/jims/article/view/16657 (Accessed: 7 May 2024).