@article{02166347, title = {Nagata rings and directed unions of Artinian subrings.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {2003}, year = {2003}, pages = {4465-4471}, doi = {10.1155/S0161171203210693}, zbl = {1074.13006}, language = {en}, url = {http://dml.mathdoc.fr/item/02166347} }
Karim, D. Nagata rings and directed unions of Artinian subrings.. International Journal of Mathematics and Mathematical Sciences, Tome 2003 (2003) pp. 4465-4471. doi : 10.1155/S0161171203210693. http://gdmltest.u-ga.fr/item/02166347/