@article{MAN_1968__176_161679,
     author = {H.H. K\"ORLE},
     title = {\"Uber unstetige absolute {Riesz-Summierung.} {I.}},
     journal = {Mathematische Annalen},
     pages = {45--52},
     publisher = {mathdoc},
     volume = {176},
     year = {1968},
     zbl = {0153.08903},
     url = {http://geodesic.mathdoc.fr/item/MAN_1968__176_161679/}
}