@article{3328, author = {Chen, Chengxiang}, title = {The Brauer ring of a commutative ring}, journal = {Portugaliae mathematica}, volume = {50}, year = {1993}, pages = {163-170}, zbl = {0796.13001}, mrnumber = {1244496}, language = {en}, url = {http://dml.mathdoc.fr/item/3328} }
Chen, Chengxiang. The Brauer ring of a commutative ring. Portugaliae mathematica, Tome 50 (1993) pp. 163-170. http://gdmltest.u-ga.fr/item/3328/