TY  - JOUR
AU  - Simon André
TI  - Elementary subgroups of virtually free groups
JO  - Groups, geometry, and dynamics
PY  - 2021
SP  - 1523
EP  - 1552
VL  - 15
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4171/ggd/638/
DO  - 10.4171/ggd/638
ID  - 10_4171_ggd_638
ER  -