@article{10_4171_ggd_190,
     author = {Larsen Louder},
     title = {Scott complexity and adjoining roots  to finitely generated groups},
     journal = {Groups, geometry, and dynamics},
     pages = {451--474},
     year = {2013},
     volume = {7},
     number = {2},
     doi = {10.4171/ggd/190},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/190/}
}