@article{GDZPPN00235232X, title = {The Theorems of F. and M. Riesz for Circular Sets.}, journal = {Mathematica Scandinavica}, volume = {32}, year = {1973}, pages = {145-152}, zbl = {0281.46018}, url = {http://dml.mathdoc.fr/item/GDZPPN00235232X} }
Forelli, Frank. The Theorems of F. and M. Riesz for Circular Sets.. Mathematica Scandinavica, Tome 32 (1973) pp. 145-152. http://gdmltest.u-ga.fr/item/GDZPPN00235232X/