@article{10_4171_ggd_68,
     author = {Laurent Bartholdi and Floriane Pochon},
     title = {On growth and torsion of groups},
     journal = {Groups, geometry, and dynamics},
     pages = {525--539},
     year = {2009},
     volume = {3},
     number = {4},
     doi = {10.4171/ggd/68},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/68/}
}