@article{10_4171_ggd_83,
     author = {Robert Bieri and Ross Geoghegan and Dessislava H. Kochloukova},
     title = {The {Sigma} invariants of {Thompson{\textquoteright}s} group $F$},
     journal = {Groups, geometry, and dynamics},
     pages = {263--273},
     year = {2010},
     volume = {4},
     number = {2},
     doi = {10.4171/ggd/83},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/83/}
}