[1]
Alomari, M.W., Darus, M. and Dragomir, S.S. 2010. New inequalities of Hermite-Hadamard type for functions whose second derivatives absolute values are quasi-convex. Tamkang Journal of Mathematics. 41, 4 (Nov. 2010), 353–359. DOI:https://doi.org/10.5556/j.tkjm.41.2010.498.