@article{JCA_2011_18_3_JCA_2011_18_3_a15,
     author = {R. B\"orger},
     title = {Continuous {Selections,} {Free} {Vector} {Lattices} and {Formal} {Minkowski} {Differences}},
     journal = {Journal of convex analysis},
     pages = {855--864},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/JCA_2011_18_3_JCA_2011_18_3_a15/}
}