TY  - JOUR
AU  - David El-Chai Ben-Ezra
TI  - The congruence subgroup problem for the free metabelian group on two generators
JO  - Groups, geometry, and dynamics
PY  - 2016
SP  - 583
EP  - 599
VL  - 10
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.4171/ggd/357/
DO  - 10.4171/ggd/357
ID  - 10_4171_ggd_357
ER  -