@article{10_4171_dm_5,
     author = {Friedhelm Waldhausen},
     title = {On the construction of the {Kan} loop group},
     journal = {Documenta mathematica},
     pages = {121--126},
     year = {1996},
     volume = {1},
     doi = {10.4171/dm/5},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/5/}
}