@article{MZ_1957__67_169687,
     author = {Karl-Felix Moppert},
     title = {Funktionscharen im {L2.}},
     journal = {Mathematische Zeitschrift},
     pages = {474--478},
     publisher = {mathdoc},
     volume = {67},
     year = {1957},
     zbl = {0078.29001},
     url = {http://geodesic.mathdoc.fr/item/MZ_1957__67_169687/}
}