Khan, Mumtaz, y Bhagwat Sharma. A Study of Three Variable Analogues of Certain Fractional Integral Operators. Pro Mathematica 24, no. 47-48 (septiembre 7, 2010): 51-84. Accedido abril 19, 2024. https://revistas.pucp.edu.pe/index.php/promathematica/article/view/10274.