@article{GT_2006_10_2_a5,
     author = {Jensen, Craig A and McCammond, Jon and Meier, John},
     title = {The integral cohomology of the group of loops},
     journal = {Geometry & topology},
     pages = {759--784},
     publisher = {mathdoc},
     volume = {10},
     number = {2},
     year = {2006},
     doi = {10.2140/gt.2006.10.759},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2006.10.759/}
}