@article{JCA_2016_23_3_JCA_2016_23_3_a2,
     author = {C. Guti\'errez and L. Huerga and B. Jim\'enez and V. Novo},
     title = {Henig {Approximate} {Proper} {Efficiency} and {Optimization} {Problems} with {Difference} of {Vector} {Mappings}},
     journal = {Journal of convex analysis},
     pages = {661--69},
     year = {2016},
     volume = {23},
     number = {3},
     url = {http://geodesic.mathdoc.fr/item/JCA_2016_23_3_JCA_2016_23_3_a2/}
}