@article{10_4171_dm_211,
     author = {Matthias Franz},
     title = {Koszul duality and equivariant cohomology},
     journal = {Documenta mathematica},
     pages = {243--259},
     year = {2006},
     volume = {11},
     doi = {10.4171/dm/211},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/211/}
}