@article{JCA_2011_18_3_JCA_2011_18_3_a12,
     author = {S. Dutta and B.-L. Lin},
     title = {Local {U-Convexity}},
     journal = {Journal of convex analysis},
     pages = {811--821},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/JCA_2011_18_3_JCA_2011_18_3_a12/}
}