@article{MAN_1967__170_161540,
     author = {D. PUMPLUN},
     title = {\"Uber {Darstellungsanzahlen} von quadratfreien {Zahlen} durch {Quadratsummen.}},
     journal = {Mathematische Annalen},
     pages = {253--264},
     publisher = {mathdoc},
     volume = {170},
     year = {1967},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/MAN_1967__170_161540/}
}