TY  - JOUR
AU  - Sarkar, Sucharit
TI  - Commutators and squares in free groups
JO  - Algebraic and Geometric Topology
PY  - 2004
SP  - 595
EP  - 602
VL  - 4
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.2140/agt.2004.4.595/
DO  - 10.2140/agt.2004.4.595
ID  - 10_2140_agt_2004_4_595
ER  -