@article{MAN_1925__93_159082,
     author = {A. Walfisz},
     title = {\"Uber {Summabilit\"atss\"atze} von {Marcel} {Riesz}},
     journal = {Mathematische Annalen},
     pages = {130--148},
     publisher = {mathdoc},
     volume = {93},
     year = {1925},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1925__93_159082/}
}