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@article{MAN_1962__148_161001, author = {I. SINGER}, title = {Choquet {Spaces} and {Best} {Approximation.}}, journal = {Mathematische Annalen}, pages = {330--340}, publisher = {mathdoc}, volume = {148}, year = {1962}, zbl = {0105.09104}, url = {http://geodesic.mathdoc.fr/item/MAN_1962__148_161001/} }
I. SINGER. Choquet Spaces and Best Approximation.. Mathematische Annalen, Tome 148 (1962), pp. 330-340. http://geodesic.mathdoc.fr/item/MAN_1962__148_161001/