On new inequalities of Hermite-Hadamard type for functions whose fourth   derivative absolute values are quasi-convex with applications
  We establish some new inequalities of Hermite-Hadamard type for functions whose fourth derivatives absolute values are quasi-convex. Further, we give new identity.Using this new identity, we establish similar inequalities for left-hand side of Hermite-Hadamard result.Also, we present applications to special means. 
Imran Abbas Baloch, Basharat Rehman Ali
math.CA