@article{01678410, title = {On the number of square classes of a field of finite level.}, journal = {Documenta Mathematica}, volume = {6}, year = {2001}, pages = {65-84}, zbl = {0982.11018}, language = {en}, url = {http://dml.mathdoc.fr/item/01678410} }
Becher, Karim Johannes. On the number of square classes of a field of finite level.. Documenta Mathematica, Tome 6 (2001) pp. 65-84. http://gdmltest.u-ga.fr/item/01678410/