@article{ARM_1976__12_1_a1,
     author = {Karpe, Robert},
     title = {\"Uber gewisse {Zerlegung} einer {Funktion} $f(x)$ in $n$ trigonometrische {Reihen;} $n\geq 3$},
     journal = {Archivum mathematicum},
     pages = {9--14},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {1976},
     mrnumber = {0430656},
     zbl = {0397.42020},
     language = {ge},
     url = {http://geodesic.mathdoc.fr/item/ARM_1976__12_1_a1/}
}