Ahmad Khan, Mumtaz, y Bahman Alidad. «Three Variable Analogue of Boas and Buck Type Generating Functions and Its Generalizations to M-Variables». Pro Mathematica 26, no. 51-52 (marzo 5, 2012): 11–33. Accedido diciembre 16, 2025. https://revistas.pucp.edu.pe/index.php/promathematica/article/view/8534.