@article{JRAM_1924__153_149542,
     author = {Helmut Hasse},
     title = {\"Aquivalenz quadratischer {Formen} in einem beliebigen algebraischen {Zahlk\"orper.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {158--162},
     publisher = {mathdoc},
     volume = {153},
     year = {1924},
     zbl = {50.0104.03},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1924__153_149542/}
}