“ An Extension of Littlewood`s ’O’ Tauberian Theorem”, J. Int. Acad. Phys. Sci., vol. 11, no. 1-4, pp. 89–98, Dec. 2007, Accessed: Oct. 23, 2026. [Online]. Available: http://www.iaps.org.in/journal/index.php/journaliaps/article/view/830