@article{JCA_2012_19_3_JCA_2012_19_3_a1,
     author = {G. Peskir},
     title = {A {Duality} {Principle} for the {Legendre} {Transform}},
     journal = {Journal of convex analysis},
     pages = {609--63},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {2012},
     url = {http://geodesic.mathdoc.fr/item/JCA_2012_19_3_JCA_2012_19_3_a1/}
}