@article{700815,
     title = {On separation and approximation of real functions defined on a Choquet simplex},
     booktitle = {General Topology and its Relations to Modern Analysis and Algebra},
     series = {GDML\_Books},
     publisher = {Academia Publishing House of the Czechoslovak Academy of Sciences},
     address = {Praha},
     year = {1967},
     pages = {122-128},
     zbl = {0177.16302},
     url = {http://dml.mathdoc.fr/item/700815}
}

Edwards, D. A. On separation and approximation of real functions defined on a Choquet simplex, dans General Topology and its Relations to Modern Analysis and Algebra, GDML_Books,  (1967), pp. 122-128. http://gdmltest.u-ga.fr/item/700815/