@article{MZ_1939__45_168857,
     author = {F., Wecken},
     title = {Abstrakte {Integrale} und fastperiodische {Funktionen}},
     journal = {Mathematische Zeitschrift},
     pages = {377--404},
     publisher = {mathdoc},
     volume = {45},
     year = {1939},
     zbl = {65.0266.02},
     url = {http://geodesic.mathdoc.fr/item/MZ_1939__45_168857/}
}