@article{MZ_1949__51_169072,
     author = {H. MAASS.},
     title = {Quadratische {Formen} \"uber quadratischen {K\"orpern}},
     journal = {Mathematische Zeitschrift},
     pages = {233--254},
     publisher = {mathdoc},
     volume = {51},
     year = {1949},
     zbl = {0031.01001},
     url = {http://geodesic.mathdoc.fr/item/MZ_1949__51_169072/}
}