@article{JCA_2008_15_2_JCA_2008_15_2_a6,
     author = {J.-E. Mart{\'\i}nez-Legaz and I. Singer},
     title = {Comparing {Fenchel-Moreau} {Conjugates} with {Level} {Set} {Conjugates}},
     journal = {Journal of convex analysis},
     pages = {285--297},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {2008},
     url = {http://geodesic.mathdoc.fr/item/JCA_2008_15_2_JCA_2008_15_2_a6/}
}