Maiti, P. K. “On an Extension of a Bilateral Generating Function Involving Generalised Bessel Polynomials”. Tamkang Journal of Mathematics 40, no. 1 (March 31, 2009): 1–5. Accessed May 6, 2024. https://journals.math.tku.edu.tw/index.php/TKJM/article/view/30.