@article{10_2140_agt_2013_13_3603,
     author = {Kazez, William H and Roberts, Rachel},
     title = {Fractional {Dehn} twists in knot theory and contact topology},
     journal = {Algebraic and Geometric Topology},
     pages = {3603--3637},
     year = {2013},
     volume = {13},
     number = {6},
     doi = {10.2140/agt.2013.13.3603},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2013.13.3603/}
}