@article{10_4007_annals_2009_169_661,
     author = {Shiri Artstein-Avidan and Vitali Milman},
     title = {The concept of duality in convex analysis, and the characterization of the {Legendre} transform},
     journal = {Annals of mathematics},
     pages = {661--674},
     publisher = {mathdoc},
     volume = {169},
     number = {2},
     year = {2009},
     doi = {10.4007/annals.2009.169.661},
     mrnumber = {2480615},
     zbl = {1173.26008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4007/annals.2009.169.661/}
}