TY - JOUR AU - Peral Menal AU - Leonid N. Vaserstein TI - On subgroups of GL2 over non-commutative local rings which are normalized by elementary matrices. JO - Mathematische Annalen PY - 1989 SP - 221 EP - 232 VL - 285 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MAN_1989__285_1_164596/ ID - MAN_1989__285_1_164596 ER -