@article{MZ_1959__71_169818,
     author = {W. Koppelman and J.D. Pincus},
     title = {Spectral {Representations} for {Finite} {Hilbert} {Transformations.}},
     journal = {Mathematische Zeitschrift},
     pages = {399--407},
     publisher = {mathdoc},
     volume = {71},
     year = {1959},
     zbl = {0085.31701},
     url = {http://geodesic.mathdoc.fr/item/MZ_1959__71_169818/}
}