@article{1077314177, author = {Alperin, Roger}, title = {$SL\_2(Z[(1+\sqrt{5})/2])$}, journal = {Duke Math. J.}, volume = {47}, number = {1}, year = {1980}, pages = { 487-509}, language = {en}, url = {http://dml.mathdoc.fr/item/1077314177} }
Alperin, Roger. $SL_2(Z[(1+\sqrt{5})/2])$. Duke Math. J., Tome 47 (1980) no. 1, pp. 487-509. http://gdmltest.u-ga.fr/item/1077314177/