@article{MS2_1973__33_166321,
     author = {Frank Forelli},
     title = {The {Theorems} of {F.} and {M.} {Riesz} for {Circular} {Sets.}},
     journal = {Mathematica Scandinavica},
     pages = {145--152},
     publisher = {mathdoc},
     volume = {33},
     year = {1973},
     zbl = {0281.46018},
     url = {http://geodesic.mathdoc.fr/item/MS2_1973__33_166321/}
}