@article{PIM_1979_N_S_26_40_a39,
     author = {Rade \v{Z}ivaljevi\'c},
     title = {Note {On} {H-Convex} {Functions}},
     journal = {Publications de l'Institut Math\'ematique},
     pages = {313 },
     publisher = {mathdoc},
     volume = {_N_S_26},
     number = {40},
     year = {1979},
     url = {http://geodesic.mathdoc.fr/item/PIM_1979_N_S_26_40_a39/}
}