@article{GT_2007_11_3_a6,
     author = {Costello, Kevin},
     title = {Topological conformal field theories and gauge theories},
     journal = {Geometry & topology},
     pages = {1539--1579},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {2007},
     doi = {10.2140/gt.2007.11.1539},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2007.11.1539/}
}