%0 Journal Article %A Usher, Michael %T Vortices and a TQFT for Lefschetz fibrations on 4–manifolds %J Algebraic and Geometric Topology %D 2006 %P 1677-1743 %V 6 %N 4 %U http://geodesic.mathdoc.fr/articles/10.2140/agt.2006.6.1677/ %R 10.2140/agt.2006.6.1677 %F 10_2140_agt_2006_6_1677