Marichev, O. I., & Kalla, S. L. (1). Behaviour of hypergeometric function p F p-1 (z) in the vicinity of unity. Rev. Téc. Fac. Ing. Univ. Zulia, 7(2). Recuperado a partir de https://mail.produccioncientificaluz.org/index.php/tecnica/article/view/5123