@article{MAN_1980__249_163393,
     author = {Joachim Schwermer},
     title = {A {Note} on {Link} {Complements} and {Arithmetic} {Groups.}},
     journal = {Mathematische Annalen},
     pages = {107--110},
     publisher = {mathdoc},
     volume = {249},
     year = {1980},
     zbl = {0443.57005},
     url = {http://geodesic.mathdoc.fr/item/MAN_1980__249_163393/}
}