@article{MZ_1959__71_169798,
     author = {Karl Zeller},
     title = {Saturation bei \"aquivalenten {Summierungsverfahren.}},
     journal = {Mathematische Zeitschrift},
     pages = {109--112},
     publisher = {mathdoc},
     volume = {71},
     year = {1959},
     zbl = {0086.05501},
     url = {http://geodesic.mathdoc.fr/item/MZ_1959__71_169798/}
}