%0 Journal Article %A Gordon, Cameron McA %A Luecke, John %T Knots with unknotting number 1 and essential Conway spheres %J Algebraic and Geometric Topology %D 2006 %P 2051-2116 %V 6 %N 5 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2006.6.2051/ %R 10.2140/agt.2006.6.2051 %F 10_2140_agt_2006_6_2051