@article{03941654, title = {More on the Schur group of a commutative ring.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {8}, year = {1985}, pages = {513-520}, doi = {10.1155/S0161171285000552}, zbl = {0587.13002}, language = {en}, url = {http://dml.mathdoc.fr/item/03941654} }
Mollin, R.A. More on the Schur group of a commutative ring.. International Journal of Mathematics and Mathematical Sciences, Tome 8 (1985) pp. 513-520. doi : 10.1155/S0161171285000552. http://gdmltest.u-ga.fr/item/03941654/