@article{GDZPPN002348268, title = {Convex Sets and Chebyshev Sets II.}, journal = {Mathematica Scandinavica}, volume = {18}, year = {1966}, pages = {5-15}, zbl = {0151.17504}, url = {http://dml.mathdoc.fr/item/GDZPPN002348268} }
Brondsted, Arne. Convex Sets and Chebyshev Sets II.. Mathematica Scandinavica, Tome 18 (1966) pp. 5-15. http://gdmltest.u-ga.fr/item/GDZPPN002348268/