@article{BMMS_2012_35_3_a9,
     author = {Kristina Krulic and Josip Pecaric and Ksenija Smoljak},
     title = {$a(x)${-Convex} {Functions} and {Their} {Inequalities}},
     journal = {Bulletin of the Malaysian Mathematical Society},
     year = {2012},
     volume = {35},
     number = {3},
     url = {http://geodesic.mathdoc.fr/item/BMMS_2012_35_3_a9/}
}