@article{MZ_1971__120_171526,
     author = {Friedrich Stummel},
     title = {Diskrete {Konvergenz} linearer {Operatoren.} {II.}},
     journal = {Mathematische Zeitschrift},
     pages = {231--264},
     publisher = {mathdoc},
     volume = {120},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MZ_1971__120_171526/}
}