@article{MZ_1951__55_169235,
     author = {W. Jurkat},
     title = {\"Uber {Rieszsche} {Mittel} mit unstetigem {Parameter.}},
     journal = {Mathematische Zeitschrift},
     pages = {8--12},
     year = {1951},
     volume = {55},
     zbl = {0044.06203},
     url = {http://geodesic.mathdoc.fr/item/MZ_1951__55_169235/}
}