@article{10_2140_agt_2019_19_239,
     author = {Blumberg, Andrew and Mandell, Michael},
     title = {E2 structures and derived {Koszul} duality in string topology},
     journal = {Algebraic and Geometric Topology},
     pages = {239--279},
     publisher = {mathdoc},
     volume = {19},
     number = {1},
     year = {2019},
     doi = {10.2140/agt.2019.19.239},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2019.19.239/}
}