@article{JCA_1996_3_1_a9,
     author = {S. Traore and M. Volle},
     title = {On the level sum of two convex functions on {Banach} spaces},
     journal = {Journal of convex analysis},
     pages = {141--152},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1996},
     url = {http://geodesic.mathdoc.fr/item/JCA_1996_3_1_a9/}
}