@article{MZ_1979__167_172832,
     author = {Walter Schempp},
     title = {A {Note} on the {Newman-Schoenberg} {Phenomenon.}},
     journal = {Mathematische Zeitschrift},
     pages = {1--6},
     publisher = {mathdoc},
     volume = {167},
     year = {1979},
     zbl = {0387.41005},
     url = {http://geodesic.mathdoc.fr/item/MZ_1979__167_172832/}
}