@article{MZ_1984__188_173536,
     author = {J. Rohlfs},
     title = {On the {Cuspidal} {Cohomology} of the {Bianchi} {Modular} {Groups.}},
     journal = {Mathematische Zeitschrift},
     pages = {253--270},
     publisher = {mathdoc},
     volume = {188},
     year = {1984},
     zbl = {0535.20028},
     url = {http://geodesic.mathdoc.fr/item/MZ_1984__188_173536/}
}