@article{JCA_2009_16_1_JCA_2009_16_1_a3,
     author = {U. Stefanelli},
     title = {The {Discrete} {Brezis-Ekeland} {Principle}},
     journal = {Journal of convex analysis},
     pages = {71--87},
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {2009},
     url = {http://geodesic.mathdoc.fr/item/JCA_2009_16_1_JCA_2009_16_1_a3/}
}