A direct proof of Braun's characterization of Azumaya algebras is given.
@article{urn:eudml:doc:41054, title = {On a characterization of Azumaya algebras.}, journal = {Publicacions Matem\`atiques}, volume = {32}, year = {1988}, pages = {165-166}, mrnumber = {MR0975894}, zbl = {0662.16005}, language = {en}, url = {http://dml.mathdoc.fr/item/urn:eudml:doc:41054} }
Dicks, Warren. On a characterization of Azumaya algebras.. Publicacions Matemàtiques, Tome 32 (1988) pp. 165-166. http://gdmltest.u-ga.fr/item/urn:eudml:doc:41054/