1. Pečarić, J., Perić, J.: New improvement of the converse Jensen inequality. Math. Inequal. Appl. 21(1), 217–234 (2018)
2. Choi, D., Krnić, M., Pečarić, J.: More accurate classes of Jensen-type inequalities for convex and operator convex functions. Math. Inequal. Appl. 21(2), 301–321 (2018)
3. Sababheh, M.: Improved Jensen’s inequality. Math. Inequal. Appl. 20(2), 389–403 (2017)
4. Hot, J.M., Seo, Y.: An interpolation of Jensen’s inequality and its converses with applications to quasi-arithmetic mean inequalities. J. Math. Inequal. 12(2), 303–313 (2018)
5. Lu, G.: New refinements of Jensen’s inequality and entropy upper bounds. J. Math. Inequal. 12(2), 403–421 (2018)