On (h-s)_{1,2}-convex Functions and Hadamard-type Inequalities
  In this paper, two new classes of convex functions as a generalization of convexity which is called (h-s)_{1,2}-convex functions are given. We also prove some Hadamard-type inequalities and applications to the special means are given. 
M. Emin Ozdemir, Mevlut Tunc, Ahmet Ocak Akdemir
math.CA