%0 Journal Article %A Rosenstein, Joseph G. %T On GL 2(R) Where R is a Boolean Ring %J Canadian mathematical bulletin %D 1972 %P 263-275 %V 15 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-048-6/ %R 10.4153/CMB-1972-048-6 %F 10_4153_CMB_1972_048_6