@article{JCA_2007_14_1_JCA_2007_14_1_a7,
     author = {C. Stepniak},
     title = {An {Effective} {Characterization} of {Schur-Convex} {Functions} with {Applications}},
     journal = {Journal of convex analysis},
     pages = {103--108},
     publisher = {mathdoc},
     volume = {14},
     number = {1},
     year = {2007},
     url = {http://geodesic.mathdoc.fr/item/JCA_2007_14_1_JCA_2007_14_1_a7/}
}