@article{GDZPPN002384205, title = {Zur Theorie der endlichen Hilbert-Transformation.}, journal = {Mathematische Zeitschrift}, volume = {61}, year = {1954}, pages = {31-51}, zbl = {0055.09502}, url = {http://dml.mathdoc.fr/item/GDZPPN002384205} }
Söhngen, Heinz. Zur Theorie der endlichen Hilbert-Transformation.. Mathematische Zeitschrift, Tome 61 (1954) pp. 31-51. http://gdmltest.u-ga.fr/item/GDZPPN002384205/