@article{10_4171_ggd_93,
     author = {Adam Clay},
     title = {Isolated points in the space of left orderings of a group},
     journal = {Groups, geometry, and dynamics},
     pages = {517--532},
     year = {2010},
     volume = {4},
     number = {3},
     doi = {10.4171/ggd/93},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/93/}
}