@article{JCA_2008_15_1_JCA_2008_15_1_a6,
     author = {M. Buliga and G. de Saxc\'e and C. Vall\'ee},
     title = {Existence and {Construction} of {Bipotentials} for {Graphs} of {Multivalued} {Laws}},
     journal = {Journal of convex analysis},
     pages = {87--104},
     publisher = {mathdoc},
     volume = {15},
     number = {1},
     year = {2008},
     url = {http://geodesic.mathdoc.fr/item/JCA_2008_15_1_JCA_2008_15_1_a6/}
}