@article{JCA_2011_18_1_JCA_2011_18_1_a0,
     author = {V. V. Goncharov and F. F. Pereira},
     title = {Neighbourhood {Retractions} of {Nonconvex} {Sets} in a {Hilbert} {Space} via {Sublinear} {Functionals}},
     journal = {Journal of convex analysis},
     pages = {1--36},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/JCA_2011_18_1_JCA_2011_18_1_a0/}
}