%0 Journal Article %A Lacroix, Norbert H. J. %T Two-Dimensional Linear Groups Over Local Rings %J Canadian journal of mathematics %D 1969 %P 106-135 %V 21 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-011-8/ %R 10.4153/CJM-1969-011-8 %F 10_4153_CJM_1969_011_8