@article{GDZPPN002268868, title = {Additive Theorie der Zahlk\"orper. I.}, journal = {Mathematische Annalen}, volume = {86}, year = {1922}, pages = {1-35}, zbl = {48.0179.02}, url = {http://dml.mathdoc.fr/item/GDZPPN002268868} }
Siegel, C.L. Additive Theorie der Zahlkörper. I.. Mathematische Annalen, Tome 86 (1922) pp. 1-35. http://gdmltest.u-ga.fr/item/GDZPPN002268868/