Khan, Mumtaz, y Ghazi Salama Abukhammash. On a Generalization of Appell*s Functions of Two Variables. Pro Mathematica 16, no. 31-32 (febrero 11, 2002): 61-83. Accedido abril 25, 2024. https://revistas.pucp.edu.pe/index.php/promathematica/article/view/8183.