@article{10_2140_agt_2014_14_539,
     author = {Akhmedov, Azer},
     title = {A weak {Zassenhaus} {Lemma} for discrete subgroups of {Diff(I)}},
     journal = {Algebraic and Geometric Topology},
     pages = {539--550},
     year = {2014},
     volume = {14},
     number = {1},
     doi = {10.2140/agt.2014.14.539},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2014.14.539/}
}