%0 Journal Article %A Dowty, James G %T A new invariant on hyperbolic Dehn surgery space %J Algebraic and Geometric Topology %D 2002 %P 465-497 %V 2 %N 1 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2002.2.465/ %R 10.2140/agt.2002.2.465 %F 10_2140_agt_2002_2_465