@article{10_4171_dm_255,
     author = {Gereon Quick},
     title = {Profinite homotopy theory},
     journal = {Documenta mathematica},
     pages = {585--612},
     year = {2008},
     volume = {13},
     doi = {10.4171/dm/255},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/255/}
}