@article{1028989727, author = {Tornheim, Leonard}, title = {Normed fields over the real and complex fields.}, journal = {Michigan Math. J.}, volume = {1}, number = {2}, year = {1952}, pages = { 61-68}, language = {en}, url = {http://dml.mathdoc.fr/item/1028989727} }
Tornheim, Leonard. Normed fields over the real and complex fields.. Michigan Math. J., Tome 1 (1952) no. 2, pp. 61-68. http://gdmltest.u-ga.fr/item/1028989727/