TY  - JOUR
AU  - Ol’shanskii, Alexander Yu
AU  - Osin, Denis V
AU  - Sapir, Mark V
TI  - Lacunary hyperbolic groups
JO  - Geometry & topology
PY  - 2009
SP  - 2051
EP  - 2140
VL  - 13
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.2140/gt.2009.13.2051/
DO  - 10.2140/gt.2009.13.2051
ID  - GT_2009_13_4_a5
ER  -