@article{GT_2012_16_2_a6,
     author = {Dwyer, William and Hess, Kathryn},
     title = {Long knots and maps between operads},
     journal = {Geometry & topology},
     pages = {919--955},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {2012},
     doi = {10.2140/gt.2012.16.919},
     url = {http://geodesic.mathdoc.fr/articles/10.2140/gt.2012.16.919/}
}