@article{MAN_1922__87_158955,
     author = {C.L. Siegel},
     title = {Additive {Theorie} der {Zahlk\"orper.} {I.}},
     journal = {Mathematische Annalen},
     pages = {1--35},
     publisher = {mathdoc},
     volume = {87},
     year = {1922},
     zbl = {48.0179.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1922__87_158955/}
}