@article{AM2_1993__45_2-3_137520,
     author = {Mihai Dragomirescu and Constantin Ivan},
     title = {Convexity-like inequalities for averages in a convex set.},
     journal = {Aequationes mathematicae},
     pages = {179--194},
     publisher = {mathdoc},
     volume = {45},
     number = {2-3},
     year = {1993},
     zbl = {0769.26006},
     url = {http://geodesic.mathdoc.fr/item/AM2_1993__45_2-3_137520/}
}