@article{1077493516, author = {Brown, Arthur B.}, title = {Effective parameters}, journal = {Duke Math. J.}, volume = {9}, number = {1}, year = {1942}, pages = { 773-789}, language = {en}, url = {http://dml.mathdoc.fr/item/1077493516} }
Brown, Arthur B. Effective parameters. Duke Math. J., Tome 9 (1942) no. 1, pp. 773-789. http://gdmltest.u-ga.fr/item/1077493516/