Ostrowski, Grüss, Čebyšev type inequalities for functions whose second derivatives belong to L p ( a , b ) and whose modulus of second derivatives are convex. Rafiq, Arif; Ahmad, Farooq — 2007 Revista Colombiana de Matemáticas
Generalization of integral inequalities for functions whose modulus of n th derivatives are convex. Mir, Nazir Ahmad; Rafiq, Arif; Ahmad, Farooq — 2006 General Mathematics
Another weighted Ostrowski-grüss type inequality for twice differentiable mappings Arif Rafiq; Farooq Ahmad — 2008 Kragujevac Journal of Mathematics