@article{MAN_1978__233_163100,
     author = {Karlheinz Knapp},
     title = {On the {K-Homology} of {Classifying} {Spaces.}},
     journal = {Mathematische Annalen},
     pages = {103--124},
     year = {1978},
     volume = {233},
     zbl = {0354.55012},
     url = {http://geodesic.mathdoc.fr/item/MAN_1978__233_163100/}
}