@article{1077474143, author = {Bernstein, B. A.}, title = {Weak definitions of field}, journal = {Duke Math. J.}, volume = {14}, number = {1}, year = {1947}, pages = { 475-482}, language = {en}, url = {http://dml.mathdoc.fr/item/1077474143} }
Bernstein, B. A. Weak definitions of field. Duke Math. J., Tome 14 (1947) no. 1, pp. 475-482. http://gdmltest.u-ga.fr/item/1077474143/