@article{MZ_1967__95_170653,
     author = {Marvin W. Grossman},
     title = {The {Choquet} {Boundary} and {Extreme} {Sets.}},
     journal = {Mathematische Zeitschrift},
     pages = {259--271},
     publisher = {mathdoc},
     volume = {95},
     year = {1967},
     zbl = {0143.15602},
     url = {http://geodesic.mathdoc.fr/item/MZ_1967__95_170653/}
}