%0 Journal Article %A Maclachlan, C. %A Reid, A. W. %T Parametrizing Fuchsian Subgroups of the Bianchi Groups %J Canadian journal of mathematics %D 1991 %P 158-181 %V 43 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1991-009-1/ %R 10.4153/CJM-1991-009-1 %F 10_4153_CJM_1991_009_1