@article{MAN_1987__278_164303,
     author = {G. Harder},
     title = {Eisensteinkohomolgie f\"ur {Gruppen} vom {Typ} {GU} (2, 1).},
     journal = {Mathematische Annalen},
     pages = {563--592},
     publisher = {mathdoc},
     volume = {278},
     year = {1987},
     zbl = {0633.10030},
     url = {http://geodesic.mathdoc.fr/item/MAN_1987__278_164303/}
}