M. I. Qureshi, K. A. Quraishi, B. Khan and R. Singh (2015) “Multiplication Formulae for Double Hypergeometric Functions of Exton and Kampe Deferiet”, International Journal of Mathematics And its Applications, 3(3 - D), pp. 19–24. Available at: http://ijmaa.in/index.php/ijmaa/article/view/472 (Accessed: 11 May 2024).