@article{DOCMA_2012__17__a17,
     author = {Ebert, Johannes and Randal-Williams, Oscar},
     title = {Stable cohomology of the universal {Picard} varieties and the extended mapping class group},
     journal = {Documenta mathematica},
     pages = {417--450},
     publisher = {mathdoc},
     volume = {17},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DOCMA_2012__17__a17/}
}