@article{10_2140_agt_2002_2_465,
     author = {Dowty, James G},
     title = {A new invariant on hyperbolic {Dehn} surgery space},
     journal = {Algebraic and Geometric Topology},
     pages = {465--497},
     year = {2002},
     volume = {2},
     number = {1},
     doi = {10.2140/agt.2002.2.465},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2002.2.465/}
}