Finite subgroups of hyperbolic groups

@article{Bogopolskii1996FiniteSO,
  title={Finite subgroups of hyperbolic groups},
  author={O. V. Bogopolskii and Vladislav N. Gerasimov},
  journal={Algebra and Logic},
  year={1996},
  volume={34},
  pages={343-345}
}
Let G be a hyperbolic group which is δ-thin w.r.t. a finite generating set X. We show that every finite subgroup of G is conjugate to a subgroup each element of which has length at most 2δ + 1relative to X.